2018 United States House of Representatives election ratings
The 2018 United States House of Representatives elections were held on November 6, 2018, with early voting taking place in some states in the weeks preceding that date. Voters chose representatives from all 435 congressional districts across each of the 50 U.S. states. Non-voting delegates from the District of Columbia and four of the five inhabited U.S. territories[lower-alpha 1] were also elected. These midterm elections took place nearly halfway through the first term of Republican President Donald Trump. The winners will serve in the 116th United States Congress, with seats apportioned among the states based on the 2010 United States Census. On Election Day, Republicans had held a House majority since January 2011 as a result of the 2010 elections.
In the 2018 midterm elections, the Democrats won control of the House and had a net gain of more than 40 seats from their total after the 2016 elections (including one seat gained previously with Conor Lamb's March 2018 special election victory). This was their largest gain of seats since the 1974 elections, when they picked up 49 seats.
Election ratings
Latest published ratings for competitive seats
Several sites and individuals publish ratings of competitive seats. The seats listed below were considered competitive (not "safe" or "solid") by at least one of the rating groups. These ratings are based upon factors such as the strength of the incumbent (if the incumbent is running for re-election), the strength of the candidates, and the partisan history of the district (the Cook Partisan Voting Index is one example of this metric). Each rating describes the likelihood of a given outcome in the election.
Most election ratings use:
- Tossup: no advantage
- Tilt (sometimes used): slight advantage
- Lean: clear advantage
- Likely or favored: strong, but not certain advantage
- Safe or solid: outcome is nearly certain
| District | CPVI [1][2] | Incumbent | Previous result[3] |
Cook November 5, 2018[4] |
I.E. November 5, 2018[5] |
Sab. November 5, 2018[6] |
RCP November 5, 2018[7] |
Daily Kos November 5, 2018[8] |
538 November 6, 2018[lower-alpha 2][9] |
Winner[10] |
|---|---|---|---|---|---|---|---|---|---|---|
| Alaska at-large | R+9 | Don Young (R) | 50.3% R | Lean R | Likely R | Lean R | Tossup | Lean R | Lean R | Don Young (R) |
| Arizona 1 | R+2 | Tom O'Halleran (D) | 50.7% D | Lean D | Lean D | Likely D | Tossup | Likely D | Likely D | Tom O'Halleran (D) |
| Arizona 2 | R+1 | Martha McSally (R) (Retiring) | 57.0% R | Lean D (flip) | Lean D (flip) | Likely D (flip) | Lean D (flip) | Likely D (flip) | Safe D (flip) | Ann Kirkpatrick (D) |
| Arizona 6 | R+9 | David Schweikert (R) | 62.1% R | Likely R | Safe R | Likely R | Likely R | Safe R | Likely R | David Schweikert (R) |
| Arizona 8 | R+13 | Debbie Lesko (R) | 52.4% R | Likely R | Likely R | Likely R | Likely R | Safe R | Likely R | Debbie Lesko (R) |
| Arizona 9 | D+4 | Kyrsten Sinema (D) (Retiring) | 60.9% D | Safe D | Safe D | Safe D | Likely D | Safe D | Safe D | Greg Stanton (D) |
| Arkansas 2 | R+7 | French Hill (R) | 58.4% R | Likely R | Likely R | Lean R | Likely R | Likely R | Likely R | French Hill (R) |
| California 1 | R+11 | Doug LaMalfa (R) | 59.1% R | Likely R | Safe R | Safe R | Safe R | Safe R | Likely R | Doug LaMalfa (R) |
| California 4 | R+10 | Tom McClintock (R) | 62.7% R | Likely R | Likely R | Likely R | Likely R | Likely R | Likely R | Tom McClintock (R) |
| California 7 | D+3 | Ami Bera (D) | 51.2% D | Likely D | Safe D | Likely D | Lean D | Safe D | Safe D | Ami Bera (D) |
| California 10 | EVEN | Jeff Denham (R) | 51.7% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Likely D (flip) | Josh Harder (D) |
| California 16 | D+9 | Jim Costa (D) | 58.0% D | Likely D | Safe D | Likely D | Safe D | Safe D | Safe D | Jim Costa (D) |
| California 21 | D+5 | David Valadao (R) | 56.7% R | Likely R | Likely R | Lean R | Likely R | Likely R | Likely R | TJ Cox (D) |
| California 22 | R+8 | Devin Nunes (R) | 67.6% R | Likely R | Safe R | Likely R | Likely R | Likely R | Safe R | Devin Nunes (R) |
| California 24 | D+7 | Salud Carbajal (D) | 53.4% D | Safe D | Safe D | Likely D | Likely D | Safe D | Safe D | Salud Carbajal (D) |
| California 25 | EVEN | Steve Knight (R) | 53.1% R | Tossup | Tossup | Lean R | Tossup | Tossup | Lean D (flip) | Katie Hill (D) |
| California 39 | EVEN | Ed Royce (R) (Retiring) | 57.2% R | Tossup | Tossup | Lean R | Tossup | Tossup | Tossup | Gil Cisneros (D) |
| California 45 | R+3 | Mimi Walters (R) | 58.6% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Katie Porter (D) |
| California 48 | R+4 | Dana Rohrabacher (R) | 58.3% R | Tossup | Tilt D (flip) | Lean D (flip) | Tossup | Tossup | Tossup | Harley Rouda (D) |
| California 49 | R+1 | Darrell Issa (R) (Retiring) | 50.3% R | Likely D (flip) | Lean D (flip) | Likely D (flip) | Lean D (flip) | Likely D (flip) | Safe D (flip) | Mike Levin (D) |
| California 50 | R+11 | Duncan D. Hunter (R) | 63.5% R | Lean R | Lean R | Lean R | Lean R | Lean R | Likely R | Duncan D. Hunter (R) |
| Colorado 3 | R+6 | Scott Tipton (R) | 54.6% R | Likely R | Safe R | Lean R | Likely R | Likely R | Likely R | Scott Tipton (R) |
| Colorado 6 | D+2 | Mike Coffman (R) | 50.9% R | Lean D (flip) | Tilt D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Likely D (flip) | Jason Crow (D) |
| Florida 6 | R+7 | Vacant | 58.6% R | Lean R | Lean R | Lean R | Likely R | Lean R | Lean R | Michael Waltz (R) |
| Florida 7 | EVEN | Stephanie Murphy (D) | 51.5% D | Likely D | Likely D | Likely D | Lean D | Likely D | Likely D | Stephanie Murphy (D) |
| Florida 13 | D+2 | Charlie Crist (D) | 51.9% D | Safe D | Safe D | Safe D | Likely D | Safe D | Safe D | Charlie Crist (D) |
| Florida 15 | R+6 | Dennis A. Ross (R) (Retiring) | 57.5% R | Tossup | Tilt R | Lean R | Tossup | Lean R | Tossup | Ross Spano (R) |
| Florida 16 | R+7 | Vern Buchanan (R) | 59.8% R | Lean R | Likely R | Likely R | Lean R | Likely R | Likely R | Vern Buchanan (R) |
| Florida 18 | R+5 | Brian Mast (R) | 53.6% R | Lean R | Likely R | Lean R | Lean R | Lean R | Likely R | Brian Mast (R) |
| Florida 25 | R+4 | Mario Díaz-Balart (R) | 62.4% R | Lean R | Safe R | Likely R | Likely R | Likely R | Lean R | Mario Díaz-Balart (R) |
| Florida 26 | D+6 | Carlos Curbelo (R) | 53.0% R | Tossup | Tossup | Lean R | Tossup | Tossup | Tossup | Debbie Mucarsel-Powell (D) |
| Florida 27 | D+5 | Ileana Ros-Lehtinen (R) (Retiring) | 54.9% R | Lean D (flip) | Lean D (flip) | Lean D (flip) | Tossup | Lean D (flip) | Likely D (flip) | Donna Shalala (D) |
| Georgia 6 | R+8 | Karen Handel (R) | 51.8% R | Tossup | Lean R | Lean R | Tossup | Lean R | Tossup | Lucy McBath (D) |
| Georgia 7 | R+9 | Rob Woodall (R) | 60.4% R | Lean R | Lean R | Lean R | Lean R | Lean R | Likely R | Rob Woodall (R) |
| Illinois 6 | R+2 | Peter Roskam (R) | 59.2% R | Lean D (flip) | Tilt D (flip) | Lean D (flip) | Tossup | Tossup | Tossup | Sean Casten (D) |
| Illinois 12 | R+5 | Mike Bost (R) | 54.3% R | Lean R | Tilt R | Lean R | Lean R | Lean R | Lean R | Mike Bost (R) |
| Illinois 13 | R+3 | Rodney Davis (R) | 59.7% R | Lean R | Lean R | Lean R | Lean R | Lean R | Lean R | Rodney Davis (R) |
| Illinois 14 | R+5 | Randy Hultgren (R) | 59.3% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Lauren Underwood (D) |
| Indiana 2 | R+11 | Jackie Walorski (R) | 59.3% R | Likely R | Likely R | Likely R | Likely R | Likely R | Safe R | Jackie Walorski (R) |
| Indiana 9 | R+13 | Trey Hollingsworth (R) | 54.1% R | Safe R | Safe R | Likely R | Safe R | Likely R | Likely R | Trey Hollingsworth (R) |
| Iowa 1 | D+1 | Rod Blum (R) | 53.7% R | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Safe D (flip) | Abby Finkenauer (D) |
| Iowa 2 | D+1 | Dave Loebsack (D) | 53.7% D | Safe D | Safe D | Safe D | Likely D | Safe D | Safe D | Dave Loebsack (D) |
| Iowa 3 | R+1 | David Young (R) | 53.5% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Cindy Axne (D) |
| Iowa 4 | R+11 | Steve King (R) | 61.2% R | Lean R | Likely R | Lean R | Lean R | Likely R | Likely R | Steve King (R) |
| Kansas 2 | R+10 | Lynn Jenkins (R) (Retiring) | 60.9% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Steve Watkins (R) |
| Kansas 3 | R+4 | Kevin Yoder (R) | 51.3% R | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Likely D (flip) | Sharice Davids (D) |
| Kentucky 6 | R+9 | Andy Barr (R) | 61.1% R | Tossup | Tossup | Lean R | Tossup | Tossup | Tossup | Andy Barr (R) |
| Maine 2 | R+2 | Bruce Poliquin (R) | 54.8% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Jared Golden (D) |
| Michigan 1 | R+9 | Jack Bergman (R) | 54.9% R | Likely R | Safe R | Likely R | Safe R | Likely R | Likely R | Jack Bergman (R) |
| Michigan 2 | R+9 | Bill Huizenga (R) | 62.6% R | Safe R | Safe R | Likely R | Safe R | Safe R | Likely R | Bill Huizenga (R) |
| Michigan 3 | R+6 | Justin Amash (R) | 59.5% R | Likely R | Safe R | Likely R | Safe R | Safe R | Safe R | Justin Amash (R) |
| Michigan 6 | R+4 | Fred Upton (R) | 58.7% R | Lean R | Likely R | Lean R | Lean R | Lean R | Likely R | Fred Upton (R) |
| Michigan 7 | R+7 | Tim Walberg (R) | 55.1% R | Likely R | Likely R | Likely R | Lean R | Likely R | Tossup | Tim Walberg (R) |
| Michigan 8 | R+4 | Mike Bishop (R) | 56.0% R | Tossup | Tilt D (flip) | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Elissa Slotkin (D) |
| Michigan 11 | R+4 | Dave Trott (R) (Retiring) | 52.9% R | Lean D (flip) | Tilt D (flip) | Lean D (flip) | Tossup | Lean D (flip) | Likely D (flip) | Haley Stevens (D) |
| Minnesota 1 | R+5 | Tim Walz (D) (Retiring) | 50.3% D | Tossup | Tossup | Lean D | Tossup | Tossup | Tossup | Jim Hagedorn (R) |
| Minnesota 2 | R+2 | Jason Lewis (R) | 47.0% R | Lean D (flip) | Tilt D (flip) | Lean D (flip) | Lean D (flip) | Tossup | Likely D (flip) | Angie Craig (D) |
| Minnesota 3 | D+1 | Erik Paulsen (R) | 56.7% R | Lean D (flip) | Tilt D (flip) | Lean D (flip) | Lean D (flip) | Tossup | Likely D (flip) | Dean Phillips (D) |
| Minnesota 7 | R+12 | Collin Peterson (D) | 52.5% D | Likely D | Safe D | Likely D | Tossup | Likely D | Likely D | Collin Peterson (D) |
| Minnesota 8 | R+4 | Rick Nolan (D) (Retiring) | 50.2% D | Lean R (flip) | Lean R (flip) | Lean R (flip) | Lean R (flip) | Lean R (flip) | Likely R (flip) | Pete Stauber (R) |
| Missouri 2 | R+8 | Ann Wagner (R) | 58.5% R | Lean R | Safe R | Likely R | Likely R | Likely R | Likely R | Ann Wagner (R) |
| Montana at-large | R+11 | Greg Gianforte (R) | 49.9% R | Lean R | Likely R | Lean R | Tossup | Lean R | Likely R | Greg Gianforte (R) |
| Nebraska 2 | R+4 | Don Bacon (R) | 48.9% R | Lean R | Lean R | Lean R | Lean R | Likely R | Tossup | Don Bacon (R) |
| Nevada 3 | R+2 | Jacky Rosen (D) (Retiring) | 47.2% D | Lean D | Tilt D | Lean D | Tossup | Lean D | Likely D | Susie Lee (D) |
| Nevada 4 | D+3 | Ruben Kihuen (D) (Retiring) | 48.5% D | Lean D | Lean D | Likely D | Tossup | Lean D | Likely D | Steven Horsford (D) |
| New Hampshire 1 | R+2 | Carol Shea-Porter (D) (Retiring) | 44.3% D | Likely D | Lean D | Likely D | Tossup | Lean D | Likely D | Chris Pappas (D) |
| New Hampshire 2 | D+2 | Ann McLane Kuster (D) | 49.8% D | Safe D | Safe D | Safe D | Likely D | Safe D | Safe D | Ann McLane Kuster (D) |
| New Jersey 2 | R+1 | Frank LoBiondo (R) (Retiring) | 59.2% R | Likely D (flip) | Likely D (flip) | Safe D (flip) | Likely D (flip) | Safe D (flip) | Safe D (flip) | Jeff Van Drew (D) |
| New Jersey 3 | R+2 | Tom MacArthur (R) | 59.3% R | Tossup | Tilt D (flip) | Lean D (flip) | Tossup | Tossup | Tossup | Andy Kim (D) |
| New Jersey 4 | R+8 | Chris Smith (R) | 63.7% R | Safe R | Safe R | Safe R | Safe R | Safe R | Likely R | Chris Smith (R) |
| New Jersey 5 | R+3 | Josh Gottheimer (D) | 51.1% D | Likely D | Safe D | Likely D | Likely D | Likely D | Safe D | Josh Gottheimer (D) |
| New Jersey 7 | R+3 | Leonard Lance (R) | 54.1% R | Tossup | Tossup | Lean D (flip) | Lean D (flip) | Tossup | Likely D (flip) | Tom Malinowski (D) |
| New Jersey 11 | R+3 | Rodney Frelinghuysen (R) (Retiring) | 58.0% R | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Likely D (flip) | Mikie Sherrill (D) |
| New Mexico 1 | D+7 | Michelle Lujan Grisham (D) (Retiring) | 65.1% D | Safe D | Safe D | Safe D | Likely D | Safe D | Safe D | Deb Haaland (D) |
| New Mexico 2 | R+6 | Steve Pearce (R) (Retiring) | 62.7% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Tossup | Xochitl Torres Small (D) |
| New York 1 | R+5 | Lee Zeldin (R) | 58.2% R | Likely R | Safe R | Lean R | Lean R | Likely R | Likely R | Lee Zeldin (R) |
| New York 2 | R+3 | Peter King (R) | 57.2% R | Likely R | Safe R | Likely R | Likely R | Safe R | Lean R | Peter King (R) |
| New York 3 | D+1 | Thomas Suozzi (D) | 52.4% D | Safe D | Safe D | Safe D | Likely D | Safe D | Safe D | Thomas Suozzi (D) |
| New York 11 | R+3 | Dan Donovan (R) | 61.5% R | Likely R | Lean R | Lean R | Lean R | Lean R | Likely R | Max Rose (D) |
| New York 18 | R+1 | Sean Patrick Maloney (D) | 55.6% D | Safe D | Safe D | Likely D | Likely D | Safe D | Safe D | Sean Patrick Maloney (D) |
| New York 19 | R+2 | John Faso (R) | 54.0% R | Tossup | Tilt D (flip) | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Antonio Delgado (D) |
| New York 21 | R+4 | Elise Stefanik (R) | 61.6% R | Likely R | Safe R | Likely R | Safe R | Likely R | Likely R | Elise Stefanik (R) |
| New York 22 | R+6 | Claudia Tenney (R) | 46.5% R | Tossup | Tilt D (flip) | Lean D (flip) | Tossup | Tossup | Tossup | Anthony Brindisi (D) |
| New York 23 | R+6 | Tom Reed (R) | 57.6% R | Likely R | Safe R | Likely R | Safe R | Likely R | Likely R | Tom Reed (R) |
| New York 24 | D+3 | John Katko (R) | 60.5% R | Lean R | Lean R | Lean R | Likely R | Lean R | Likely R | John Katko (R) |
| New York 27 | R+11 | Chris Collins (R) | 67.2% R | Lean R | Lean R | Lean R | Lean R | Lean R | Likely R | Chris Collins (R) |
| North Carolina 2 | R+7 | George Holding (R) | 56.7% R | Lean R | Lean R | Lean R | Lean R | Lean R | Likely R | George Holding (R) |
| North Carolina 6 | R+9 | Mark Walker (R) | 59.2% R | Safe R | Safe R | Safe R | Safe R | Safe R | Likely R | Mark Walker (R) |
| North Carolina 7 | R+9 | David Rouzer (R) | 60.9% R | Safe R | Safe R | Safe R | Safe R | Safe R | Likely R | David Rouzer (R) |
| North Carolina 8 | R+8 | Richard Hudson (R) | 58.8% R | Likely R | Safe R | Likely R | Likely R | Safe R | Likely R | Richard Hudson (R) |
| North Carolina 9 | R+8 | Robert Pittenger (R) (Lost renomination) | 58.2% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Tossup | Election voided. |
| North Carolina 13 | R+6 | Ted Budd (R) | 56.1% R | Tossup | Tilt R | Lean R | Lean R | Lean R | Lean R | Ted Budd (R) |
| Ohio 1 | R+5 | Steve Chabot (R) | 59.2% R | Lean R | Tilt R | Lean R | Lean R | Lean R | Likely R | Steve Chabot (R) |
| Ohio 7 | R+12 | Bob Gibbs (R) | 64.0% R | Safe R | Safe R | Likely R | Safe R | Likely R | Safe R | Bob Gibbs (R) |
| Ohio 10 | R+4 | Mike Turner (R) | 64.1% R | Likely R | Safe R | Likely R | Likely R | Likely R | Likely R | Mike Turner (R) |
| Ohio 12 | R+7 | Troy Balderson (R) | 50.1% R | Tossup | Tossup | Lean R | Lean R | Lean R | Lean R | Troy Balderson (R) |
| Ohio 14 | R+5 | David Joyce (R) | 62.6% R | Likely R | Likely R | Lean R | Likely R | Likely R | Likely R | David Joyce (R) |
| Ohio 15 | R+7 | Steve Stivers (R) | 66.2% R | Safe R | Safe R | Likely R | Safe R | Safe R | Safe R | Steve Stivers (R) |
| Ohio 16 | R+8 | Jim Renacci (R) (Retiring) | 65.3% R | Safe R | Safe R | Safe R | Safe R | Safe R | Likely R | Anthony Gonzalez (R) |
| Oklahoma 5 | R+10 | Steve Russell (R) | 57.1% R | Likely R | Safe R | Likely R | Likely R | Likely R | Likely R | Kendra Horn (D) |
| Oregon 5 | EVEN | Kurt Schrader (D) | 53.6% D | Safe D | Safe D | Safe D | Lean D | Safe D | Likely D | Kurt Schrader (D) |
| Pennsylvania 1 | R+1 | Brian Fitzpatrick (R) | (New district) | Tossup | Tossup | Lean R | Tossup | Tossup | Tossup | Brian Fitzpatrick (R) |
| Pennsylvania 5 | D+13 | Vacant | (New district) | Likely D (flip) | Likely D (flip) | Safe D (flip) | Likely D (flip) | Safe D (flip) | Safe D (flip) | Mary Gay Scanlon (D) |
| Pennsylvania 6 | D+2 | Ryan Costello (R) (Retiring) | (New district) | Likely D (flip) | Likely D (flip) | Safe D (flip) | Likely D (flip) | Safe D (flip) | Safe D (flip) | Chrissy Houlahan (D) |
| Pennsylvania 7 | D+1 | Vacant | (New district) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Safe D (flip) | Susan Wild (D) |
| Pennsylvania 8 | R+1 | Matt Cartwright (D) | (New district) | Likely D | Lean D | Likely D | Likely D | Likely D | Safe D | Matt Cartwright (D) |
| Pennsylvania 10 | R+6 | Scott Perry (R) | (New district) | Tossup | Lean R | Lean R | Tossup | Lean R | Lean R | Scott Perry (R) |
| Pennsylvania 11 | R+14 | Lloyd Smucker (R) | (New district) | Safe R | Safe R | Safe R | Safe R | Safe R | Likely R | Lloyd Smucker (R) |
| Pennsylvania 14 | R+14 | Conor Lamb (D) (Running in 17th district) | (New district) | Likely R (flip) | Likely R (flip) | Safe R (flip) | Likely R (flip) | Safe R (flip) | Safe R (flip) | Guy Reschenthaler (R) |
| Pennsylvania 16 | R+8 | Mike Kelly (R) | (New district) | Lean R | Likely R | Lean R | Tossup | Lean R | Likely R | Mike Kelly (R) |
| Pennsylvania 17 | R+3 | Keith Rothfus (R) | (New district) | Likely D (flip) | Lean D (flip) | Likely D (flip) | Likely D (flip) | Likely D (flip) | Safe D (flip) | Conor Lamb (D) |
| South Carolina 1 | R+10 | Mark Sanford (R) (Lost renomination) | 58.6% R | Lean R | Likely R | Lean R | Lean R | Lean R | Likely R | Joe Cunningham (D) |
| Texas 2 | R+11 | Ted Poe (R) (Retiring) | 60.6% R | Likely R | Safe R | Likely R | Safe R | Likely R | Likely R | Dan Crenshaw (R) |
| Texas 6 | R+9 | Joe Barton (R) (Retiring) | 58.3% R | Likely R | Safe R | Likely R | Safe R | Safe R | Likely R | Ron Wright (R) |
| Texas 7 | R+7 | John Culberson (R) | 56.2% R | Tossup | Tilt R | Lean R | Tossup | Tossup | Tossup | Lizzie Fletcher (D) |
| Texas 10 | R+9 | Michael McCaul (R) | 57.3% R | Likely R | Safe R | Safe R | Safe R | Safe R | Likely R | Michael McCaul (R) |
| Texas 21 | R+10 | Lamar Smith (R) (Retiring) | 57.0% R | Likely R | Likely R | Likely R | Likely R | Likely R | Likely R | Chip Roy (R) |
| Texas 22 | R+10 | Pete Olson (R) | 59.5% R | Lean R | Safe R | Likely R | Likely R | Safe R | Likely R | Pete Olson (R) |
| Texas 23 | R+1 | Will Hurd (R) | 48.3% R | Lean R | Lean R | Lean R | Lean R | Lean R | Likely R | Will Hurd (R) |
| Texas 24 | R+9 | Kenny Marchant (R) | 56.2% R | Likely R | Safe R | Safe R | Safe R | Safe R | Safe R | Kenny Marchant (R) |
| Texas 25 | R+11 | Roger Williams (R) | 58.3% R | Safe R | Safe R | Safe R | Safe R | Safe R | Likely R | Roger Williams (R) |
| Texas 31 | R+10 | John Carter (R) | 58.4% R | Likely R | Likely R | Likely R | Safe R | Likely R | Likely R | John Carter (R) |
| Texas 32 | R+5 | Pete Sessions (R) | 71.1% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Lean R | Colin Allred (D) |
| Utah 4 | R+13 | Mia Love (R) | 53.8% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Ben McAdams (D) |
| Virginia 2 | R+3 | Scott Taylor (R) | 61.3% R | Tossup | Tilt R | Lean D (flip) | Lean R | Tossup | Lean R | Elaine Luria (D) |
| Virginia 5 | R+6 | Tom Garrett (R) (Retiring) | 58.2% R | Lean R | Likely R | Lean R | Tossup | Lean R | Tossup | Denver Riggleman (R) |
| Virginia 7 | R+6 | Dave Brat (R) | 57.5% R | Tossup | Tossup | Lean D (flip) | Tossup | Tossup | Tossup | Abigail Spanberger (D) |
| Virginia 10 | D+1 | Barbara Comstock (R) | 52.7% R | Lean D (flip) | Tilt D (flip) | Lean D (flip) | Lean D (flip) | Lean D (flip) | Likely D (flip) | Jennifer Wexton (D) |
| Washington 3 | R+4 | Jaime Herrera Beutler (R) | 61.8% R | Lean R | Likely R | Lean R | Lean R | Lean R | Lean R | Jaime Herrera Beutler (R) |
| Washington 5 | R+8 | Cathy McMorris Rodgers (R) | 59.6% R | Lean R | Likely R | Lean R | Lean R | Lean R | Likely R | Cathy McMorris Rodgers (R) |
| Washington 8 | EVEN | Dave Reichert (R) (Retiring) | 60.2% R | Lean D (flip) | Tossup | Lean D (flip) | Tossup | Tossup | Lean D (flip) | Kim Schrier (D) |
| West Virginia 2 | R+17 | Alex Mooney (R) | 58.2% R | Likely R | Safe R | Safe R | Safe R | Safe R | Likely R | Alex Mooney (R) |
| West Virginia 3 | R+23 | Vacant | 67.9% R | Lean R | Lean R | Lean R | Lean R | Lean R | Likely R | Carol Miller (R) |
| Wisconsin 1 | R+5 | Paul Ryan (R) (Retiring) | 65.0% R | Lean R | Lean R | Lean R | Lean R | Lean R | Likely R | Bryan Steil (R) |
| Wisconsin 3 | EVEN | Ron Kind (D) | 98.9% D | Safe D | Safe D | Safe D | Likely D | Safe D | Safe D | Ron Kind (D) |
| Wisconsin 6 | R+8 | Glenn Grothman (R) | 57.2% R | Likely R | Safe R | Likely R | Safe R | Likely R | Safe R | Glenn Grothman (R) |
| Overall | D - 210 R - 194 30 tossups |
D - 214 R - 202 19 tossups |
D - 228 R - 207 0 tossups |
D - 203 R - 194 38 tossups |
D - 206 R - 199 30 tossups |
D - 220 R - 215 18 tossups |
D - 235 R - 199 1 voided | |||
| District | 2017 CPVI | Incumbent | Previous result | Cook | I.E. | Sab. | RCP | Daily Kos | 538 | Winner |
Generic ballot polls
Polls were conducted prior to the 2018 elections regarding respondents' party preferences.[11] Only unique sets of data from tracking polls are included in the information provided below. For example, the Ipsos/Reuters poll, which began tracking on May 19, 2017, has a sampling period of five days, so only every sixth tracking poll is included. When a poll includes results for both adults and either registered or likely voters, only results for the sample of voters is listed.
| Date | Polling firm | Poll type | Dem | GOP | Lead |
|---|---|---|---|---|---|
| November 8, 2016 | 2016 elections | – | 48.0% | 49.1% | R+1.1 |
| Jan 23–24, 2017 | PPP | Reg. Voters | 48% | 40% | D+8 |
| Jan 30–31, 2017 | PPP | Reg. Voters | 45% | 42% | D+3 |
| Feb 2–6, 2017 | McLaughlin & Associates | Likely Voters | 42.4% | 44.0% | R+1.6 |
| Feb 5–6, 2017 | Emerson College | Reg. Voters | 48.1% | 46.3% | D+1.8 |
| Feb 7–8, 2017 | PPP | Reg. Voters | 49% | 41% | D+8 |
| Feb 15–20, 2017 | McLaughlin & Associates | Likely Voters | 43.5% | 43.8% | R+0.3 |
| Feb 21–22, 2017 | PPP | Reg. Voters | 46% | 43% | D+3 |
| Mar 10–12, 2017 | PPP | Reg. Voters | 46% | 41% | D+5 |
| Mar 16–20, 2017 | McLaughlin & Associates | Likely Voters | 42.9% | 44.6% | R+1.7 |
| Mar 22–27, 2017 | McClatchy/Marist | Reg. Voters | 47% | 38% | D+9 |
| Mar 27–28, 2017 | PPP | Reg. Voters | 48% | 43% | D+5 |
| Mar 30 – April 1, 2017 | Politico/Morning Consult | Reg. Voters | 41% | 39% | D+2 |
| Apr 6–9, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 40% | D+3 |
| Apr 10–11, 2017 | YouGov/Economist | Reg. Voters | 40% | 37% | D+3 |
| Apr 11–12, 2017 | McClatchy/Marist | Reg. Voters | 45% | 38% | D+7 |
| Apr 13–15, 2017 | Politico/Morning Consult | Reg. Voters | 40% | 40% | Tie |
| Apr 15–18, 2017 | YouGov/Economist | Reg. Voters | 38% | 32% | D+6 |
| Apr 17–18, 2017 | PPP | Reg. Voters | 47% | 41% | D+6 |
| Apr 17–20, 2017 | Gravis Marketing | Reg. Voters | 47% | 42% | D+5 |
| Apr 17–20, 2017 | NBC News/Wall Street Journal | Reg. Voters | 47% | 43% | D+4 |
| Apr 20–24, 2017 | McLaughlin & Associates | Likely Voters | 43% | 43% | Tie |
| Apr 20–24, 2017 | Politico/Morning Consult | Reg. Voters | 40% | 44% | R+4 |
| Apr 22–25, 2017 | CNN/ORC | Reg. Voters | 49% | 41% | D+8 |
| Apr 23–25, 2017 | Fox News | Reg. Voters | 47% | 42% | D+5 |
| Apr 23–25, 2017 | YouGov/Economist | Reg. Voters | 39% | 34% | D+5 |
| Apr 27–30, 2017 | Politico/Morning Consult | Reg. Voters | 41% | 41% | Tie |
| Apr 29 – May 2, 2017 | YouGov/Economist | Reg. Voters | 38% | 35% | D+3 |
| May 4–6, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 36% | D+6 |
| May 4–9, 2017 | Quinnipiac University | Reg. Voters | 54% | 38% | D+16 |
| May 6–9, 2017 | YouGov/Economist | Reg. Voters | 40% | 35% | D+5 |
| May 9–11, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 37% | D+5 |
| May 12–14, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 35% | D+7 |
| May 12–14, 2017 | PPP | Reg. Voters | 49% | 38% | D+11 |
| May 13–16, 2017 | YouGov/Economist | Reg. Voters | 40% | 33% | D+7 |
| May 18–22, 2017 | Politico/Morning Consult | Reg. Voters | 41% | 37% | D+4 |
| May 19–23, 2017 | Ipsos/Reuters | Reg. Voters | 43.0% | 36.1% | D+6.9 |
| May 20–23, 2017 | YouGov/Economist | Reg. Voters | 38% | 36% | D+2 |
| May 24–28, 2017 | Ipsos/Reuters | Reg. Voters | 39.9% | 36.2% | D+3.7 |
| May 25–30, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 39% | D+4 |
| May 27–30, 2017 | YouGov/Economist | Reg. Voters | 39% | 33% | D+6 |
| May 28–31, 2017 | McLaughlin & Associates | Likely Voters | 43.4% | 43.6% | R+0.2 |
| May 29 – June 2, 2017 | Ipsos/Reuters | Reg. Voters | 41.2% | 33.7% | D+7.5 |
| Jun 1–2, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 39% | D+3 |
| May 31 – June 6, 2017 | Quinnipiac University | Reg. Voters | 51% | 39% | D+12 |
| Jun 4–6, 2017 | YouGov/Economist | Reg. Voters | 41% | 37% | D+4 |
| Jun 3–7, 2017 | Ipsos/Reuters | Reg. Voters | 42.8% | 33.4% | D+9.4 |
| Jun 9–11, 2017 | PPP | Reg. Voters | 50% | 40% | D+10 |
| Jun 8–12, 2017 | Ipsos/Reuters | Reg. Voters | 43.8% | 34.5% | D+9.3 |
| Jun 8–12, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 39% | D+3 |
| Jun 11–13, 2017 | YouGov/Economist | Reg. Voters | 38% | 36% | D+2 |
| Jun 13–17, 2017 | Ipsos/Reuters | Reg. Voters | 44.6% | 33.3% | D+11.3 |
| Jun 15–19, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 37% | D+6 |
| Jun 17–20, 2017 | NBC News/Wall Street Journal | Reg. Voters | 50% | 42% | D+8 |
| Jun 18–20, 2017 | YouGov/Economist | Reg. Voters | 38% | 35% | D+3 |
| Jun 18–22, 2017 | Ipsos/Reuters | Reg. Voters | 43.2% | 34.0% | D+9.2 |
| Jun 22–24, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 40% | D+2 |
| Jun 21–25, 2017 | NPR/PBS NewsHour/Marist | Reg. Voters | 48% | 38% | D+10 |
| Jun 22–27, 2017 | Quinnipiac University | Reg. Voters | 51% | 41% | D+10 |
| Jun 23–27, 2017 | Ipsos/Reuters | Reg. Voters | 41.8% | 32.4% | D+9.4 |
| Jun 25–27, 2017 | Fox News | Reg. Voters | 47% | 41% | D+6 |
| Jun 25–27, 2017 | YouGov/Economist | Reg. Voters | 41% | 35% | D+6 |
| Jun 29–30, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 39% | D+4 |
| Jun 28 – July 2, 2017 | Ipsos/Reuters | Reg. Voters | 40.3% | 35.3% | D+5.0 |
| Jul 3–4, 2017 | YouGov/Economist | Reg. Voters | 37% | 35% | D+2 |
| Jul 3–7, 2017 | Ipsos/Reuters | Reg. Voters | 43.8% | 34.2% | D+9.6 |
| Jul 7–9, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 40% | D+3 |
| Jul 9–11, 2017 | YouGov/Economist | Reg. Voters | 39% | 32% | D+7 |
| Jul 8–12, 2017 | Ipsos/Reuters | Reg. Voters | 40.3% | 33.6% | D+6.7 |
| Jul 10–13, 2017 | ABC News/Washington Post | Reg. Voters | 52% | 38% | D+14 |
| Jul 13–15, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 40% | D+2 |
| Jul 13–17, 2017 | Ipsos/Reuters | Reg. Voters | 41.9% | 34.9% | D+7.0 |
| Jul 14–17, 2017 | PPP | Reg. Voters | 50% | 40% | D+10 |
| Jul 15–18, 2017 | YouGov/Economist | Reg. Voters | 40% | 34% | D+6 |
| Jul 18–22, 2017 | Ipsos/Reuters | Reg. Voters | 37.8% | 33.5% | D+4.3 |
| Jul 20–24, 2017 | Politico/Morning Consult | Reg. Voters | 40% | 40% | Tie |
| Jul 23–25, 2017 | YouGov/Economist | Reg. Voters | 40% | 34% | D+6 |
| Jul 23–27, 2017 | Ipsos/Reuters | Reg. Voters | 42.5% | 34.0% | D+8.5 |
| Jul 27–29, 2017 | Politico/Morning Consult | Reg. Voters | 44% | 37% | D+7 |
| Jul 21–31, 2017 | Gravis Marketing | Adults | 46% | 40% | D+6 |
| Jul 27 – August 1, 2017 | Quinnipiac University | Reg. Voters | 52% | 38% | D+14 |
| Jul 28 – August 1, 2017 | Ipsos/Reuters | Reg. Voters | 42.5% | 33.4% | D+9.1 |
| Jul 31 – August 1, 2017 | YouGov/Economist | Reg. Voters | 39% | 34% | D+5 |
| Aug 2–6, 2017 | Ipsos/Reuters | Reg. Voters | 42.4% | 32.4% | D+10 |
| Aug 3–6, 2017 | CNN/SSRS | Reg. Voters | 51% | 42% | D+9 |
| Aug 3–6, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 36% | D+7 |
| Aug 6–8, 2017 | YouGov/Economist | Reg. Voters | 39% | 34% | D+5 |
| Aug 7–11, 2017 | Ipsos/Reuters | Reg. Voters | 42.4% | 34.2% | D+8.2 |
| Aug 8–12, 2017 | Marist | Reg. Voters | 47% | 40% | D+7 |
| Aug 10–14, 2017 | Politico/Morning Consult | Reg. Voters | 40% | 38% | D+2 |
| Aug 9–15, 2017 | Quinnipiac University | Reg. Voters | 50% | 40% | D+10 |
| Aug 13–15, 2017 | YouGov/Economist | Reg. Voters | 41% | 33% | D+8 |
| Aug 12–16, 2017 | Ipsos/Reuters | Reg. Voters | 43.8% | 30.6% | D+13.2 |
| Aug 13–17, 2017 | Lake/Tarrance | Reg. Voters | 46% | 40% | D+6 |
| Aug 17–19, 2017 | Politico/Morning Consult | Reg. Voters | 41% | 36% | D+5 |
| Aug 17–21, 2017 | Ipsos/Reuters | Reg. Voters | 40.7% | 33.8% | D+6.9 |
| Aug 18–21, 2017 | PPP | Reg. Voters | 49% | 35% | D+14 |
| Aug 17–22, 2017 | Quinnipiac University | Reg. Voters | 50% | 38% | D+12 |
| Aug 20–22, 2017 | YouGov/Economist | Reg. Voters | 39% | 33% | D+6 |
| Aug 22–26, 2017 | Ipsos/Reuters | Reg. Voters | 42.6% | 33.9% | D+8.7 |
| Aug 24–28, 2017 | McLaughlin & Associates | Likely Voters | 44.2% | 44.2% | Tie |
| Aug 24–28, 2017 | Politico/Morning Consult | Reg. Voters | 40% | 36% | D+4 |
| Aug 27–29, 2017 | YouGov/Economist | Reg. Voters | 40% | 32% | D+8 |
| Aug 27–31, 2017 | Ipsos/Reuters | Reg. Voters | 38.7% | 36.0% | D+2.7 |
| Aug 31 – September 3, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 38% | D+5 |
| Sep 1–5, 2017 | Ipsos/Reuters | Reg. Voters | 41.3% | 35.6% | D+5.7 |
| Sep 3–5, 2017 | YouGov/Economist | Reg. Voters | 39% | 33% | D+6 |
| Sep 6–10, 2017 | Ipsos/Reuters | Reg. Voters | 40.7% | 35.0% | D+5.7 |
| Sep 7–11, 2017 | Politico/Morning Consult | Reg. Voters | 40% | 37% | D+3 |
| Sep 10–12, 2017 | YouGov/Economist | Reg. Voters | 40% | 31% | D+9 |
| Sep 11–15, 2017 | Ipsos/Reuters | Reg. Voters | 44.8% | 32.7% | D+12.1 |
| Sep 14–17, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 37% | D+6 |
| Sep 14–18, 2017 | NBC News/Wall Street Journal | Adults | 48% | 42% | D+6 |
| Sep 17–19, 2017 | YouGov/Economist | Reg. Voters | 39% | 33% | D+6 |
| Sep 16–20, 2017 | Ipsos/Reuters | Reg. Voters | 41.8% | 33.7% | D+8.1 |
| Sep 17–20, 2017 | CNN/SSRS | Reg. Voters | 49% | 43% | D+6 |
| Sep 22–24, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 38% | D+4 |
| Sep 21–25, 2017 | Ipsos/Reuters | Reg. Voters | 40.7% | 35.7% | D+5.0 |
| Sep 22–25, 2017 | PPP | Reg. Voters | 48% | 37% | D+11 |
| Sep 21–26, 2017 | Quinnipiac University | Reg. Voters | 47% | 38% | D+9 |
| Sep 24–26, 2017 | YouGov/Economist | Reg. Voters | 40% | 34% | D+6 |
| Sep 26–30, 2017 | Ipsos/Reuters | Reg. Voters | 41.3% | 33.8% | D+7.5 |
| Sep 29 – October 1, 2017 | Politico/Morning Consult | Reg. Voters | 41% | 39% | D+2 |
| Oct 1–3, 2017 | YouGov/Economist | Reg. Voters | 39% | 32% | D+7 |
| Oct 1–5, 2017 | Ipsos/Reuters | Reg. Voters | 42.5% | 33.3% | D+9.2 |
| Sep 30 – October 6, 2017 | Greenberg Quinlan Rosner | Likely Voters | 49% | 44% | D+5 |
| Oct 5–9, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 37% | D+6 |
| Oct 5–10, 2017 | Quinnipiac University | Reg. Voters | 49% | 41% | D+8 |
| Oct 6–10, 2017 | Ipsos/Reuters | Reg. Voters | 39.4% | 33.7% | D+5.7 |
| Oct 7–10, 2017 | YouGov/Economist | Reg. Voters | 40% | 33% | D+7 |
| Oct 10–14, 2017 | McLaughlin & Associates | Likely Voters | 41% | 44% | R+3 |
| Oct 11–15, 2017 | Ipsos/Reuters | Reg. Voters | 40.9% | 33.6% | D+7.3 |
| Oct 12–15, 2017 | CNN/SSRS | Reg. Voters | 54% | 38% | D+16 |
| Oct 12–16, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 37% | D+5 |
| Oct 15–16, 2017 | YouGov/Economist | Reg. Voters | 41% | 33% | D+8 |
| Oct 16–20, 2017 | Ipsos/Reuters | Reg. Voters | 40.3% | 33.0% | D+7.3 |
| Oct 19–23, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 36% | D+6 |
| Oct 22–24, 2017 | Fox News | Reg. Voters | 50% | 35% | D+15 |
| Oct 22–24, 2017 | YouGov/Economist | Reg. Voters | 40% | 33% | D+7 |
| Oct 21–25, 2017 | Ipsos/Reuters | Reg. Voters | 41.3% | 31.8% | D+9.5 |
| Oct 23–26, 2017 | NBC News/Wall Street Journal | Reg. Voters | 48% | 41% | D+7 |
| Oct 27–29, 2017 | PPP | Reg. Voters | 50% | 40% | D+10 |
| Oct 18–30, 2017 | PRRI | Reg. Voters | 44% | 37% | D+7 |
| Oct 26–30, 2017 | Ipsos/Reuters | Reg. Voters | 41.8% | 33.0% | D+8.8 |
| Oct 26–30, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 38% | D+5 |
| Oct 29–31, 2017 | YouGov/Economist | Reg. Voters | 39% | 36% | D+3 |
| Oct 29 – November 1, 2017 | ABC News/Washington Post | Reg. Voters | 51% | 40% | D+11 |
| Oct 31 – November 4, 2017 | Ipsos/Reuters | Reg. Voters | 45.0% | 32.5% | D+12.5 |
| Nov 2–5, 2017 | CNN/SSRS | Reg. Voters | 51% | 40% | D+11 |
| Nov 2–6, 2017 | Politico/Morning Consult | Reg. Voters | 38% | 39% | R+1 |
| Nov 5–7, 2017 | YouGov/Economist | Reg. Voters | 40% | 33% | D+7 |
| Nov 5–9, 2017 | Ipsos/Reuters | Reg. Voters | 42.3% | 34.5% | D+7.8 |
| Nov 6–9, 2017 | Marist | Reg. Voters | 51% | 36% | D+15 |
| Nov 9–11, 2017 | Politico/Morning Consult | Reg. Voters | 44% | 36% | D+8 |
| Nov 9–12, 2017 | Rasmussen Reports/POR | Likely Voters | 49% | 41% | D+8 |
| Nov 7–13, 2017 | Quinnipiac University | Reg. Voters | 51% | 38% | D+13 |
| Nov 9–14, 2017 | McLaughlin & Associates | Likely Voters | 46% | 40% | D+6 |
| Nov 10–14, 2017 | Ipsos/Reuters | Reg. Voters | 42.4% | 34.4% | D+8.0 |
| Nov 12–14, 2017 | YouGov/Economist | Reg. Voters | 42% | 34% | D+8 |
| Nov 13–15, 2017 | NPR/PBS NewsHour/Marist | Reg. Voters | 43% | 40% | D+3 |
| Nov 15–19, 2017 | Ipsos/Reuters | Reg. Voters | 42.9% | 33.1% | D+9.8 |
| Nov 16–19, 2017 | Politico/Morning Consult | Reg. Voters | 43% | 36% | D+7 |
| Nov 19–21, 2017 | YouGov/Economist | Reg. Voters | 42% | 33% | D+9 |
| Nov 20–24, 2017 | Ipsos/Reuters | Reg. Voters | 41.9% | 33.4% | D+8.5 |
| Nov 21–25, 2017 | Politico/Morning Consult | Reg. Voters | 42% | 36% | D+6 |
| Nov 26–28, 2017 | YouGov/Economist | Reg. Voters | 41% | 35% | D+6 |
| Nov 25–29, 2017 | Ipsos/Reuters | Reg. Voters | 40.1% | 33.3% | D+6.8 |
| Dec 1–3, 2017 | Politico/Morning Consult | Reg. Voters | 40% | 38% | D+2 |
| Nov 29 – December 4, 2017 | Quinnipiac University | Reg. Voters | 50% | 36% | D+14 |
| Nov 30 – December 4, 2017 | Ipsos/Reuters | Reg. Voters | 41.0% | 37.1% | D+3.9 |
| Dec 3–5, 2017 | YouGov/Economist | Reg. Voters | 42% | 36% | D+6 |
| Dec 4–7, 2017 | Marist | Reg. Voters | 50% | 37% | D+13 |
| Dec 5–9, 2017 | Ipsos/Reuters | Reg. Voters | 42.4% | 32.3% | D+10.1 |
| Dec 6–11, 2017 | Quinnipiac University | Reg. Voters | 49% | 37% | D+12 |
| Dec 8–11, 2017 | Politico/Morning Consult | Reg. Voters | 41% | 36% | D+5 |
| Dec 10–12, 2017 | Monmouth University | Reg. Voters | 51% | 36% | D+15 |
| Dec 10–12, 2017 | YouGov/Economist | Reg. Voters | 44% | 36% | D+8 |
| Dec 11–12, 2017 | PPP | Reg. Voters | 51% | 40% | D+11 |
| Dec 10–14, 2017 | Ipsos/Reuters | Reg. Voters | 42.3% | 33.3% | D+9.0 |
| Dec 13–15, 2017 | NBC News/Wall Street Journal | Reg. Voters | 50% | 39% | D+11 |
| Dec 13–16, 2017 | OH Predictive Insights/MBQF | Likely Voters | 47.5% | 37.8% | D+9.7 |
| Dec 14–17, 2017 | CNN/SSRS | Reg. Voters | 56% | 38% | D+18 |
| Dec 14–17, 2017 | Public Opinion Strategies | Reg. Voters | 49% | 37% | D+12 |
| Dec 13–18, 2017 | Quinnipiac University | Reg. Voters | 52% | 37% | D+15 |
| Dec 14–18, 2017 | McLaughlin & Associates | Likely Voters | 45% | 44% | D+1 |
| Dec 14–18, 2017 | Politico/Morning Consult | Reg. Voters | 44% | 34% | D+10 |
| Dec 15–19, 2017 | Ipsos/Reuters | Reg. Voters | 46.1% | 31.7% | D+14.4 |
| Dec 17–19, 2017 | YouGov/Economist | Reg. Voters | 44% | 35% | D+9 |
| Dec 20–24, 2017 | Ipsos/Reuters | Reg. Voters | 45.1% | 31.1% | D+14 |
| Dec 24–26, 2017 | YouGov/Economist | Reg. Voters | 44% | 36% | D+8 |
| Dec 25–29, 2017 | Ipsos/Reuters | Reg. Voters | 45.3% | 33.0% | D+12.3 |
| December 31, 2017 – January 2, 2018 | YouGov/Economist | Reg. Voters | 42% | 36% | D+6 |
| Jan 1–5, 2018 | Ipsos | Reg. Voters | 41% | 35% | D+6 |
| Jan 4–5, 2018 | Morning Consult | Reg. Voters | 44% | 36% | D+8 |
| Jan 5–9, 2018 | Quinnipiac University | Reg. Voters | 52% | 35% | D+17 |
| Jan 8–9, 2018 | YouGov | Reg. Voters | 44% | 37% | D+7 |
| Jan 6–10, 2018 | Ipsos | Reg. Voters | 43% | 35% | D+8 |
| Jan 5–11, 2018 | McLaughlin & Associates | Likely Voters | 45% | 42% | D+3 |
| Jan 8–11, 2018 | Ipsos | Reg. Voters | 45% | 40% | D+5 |
| Jan 11–15, 2018 | Emerson College | Reg. Voters | 41% | 35% | D+6 |
| Jan 10–15, 2018 | Pew Research Center | Reg. Voters | 53% | 39% | D+14 |
| Jan 11–16, 2018 | Morning Consult | Reg. Voters | 41% | 38% | D+4 |
| Jan 12–16, 2018 | Quinnipiac University | Reg. Voters | 50% | 39% | D+11 |
| Jan 14–16, 2018 | YouGov | Reg. Voters | 42% | 36% | D+6 |
| Jan 13–17, 2018 | NBC News/Wall Street Journal | Reg. Voters | 49% | 43% | D+6 |
| Jan 14–18, 2018 | CNN/SSRS | Reg. Voters | 49% | 44% | D+5 |
| Jan 15–18, 2018 | ABC News\Washington Post | Likely Voters | 54% | 40% | D+14 |
| Jan 16–20, 2018 | Ipsos | Reg. Voters | 42% | 35% | D+7 |
| Jan 20–21, 2018 | Morning Consult | Reg. Voters | 43% | 37% | D+6 |
| Jan 19–23, 2018 | Quinnipiac University | Reg. Voters | 51% | 38% | D+13 |
| Jan 21–23, 2018 | YouGov | Reg. Voters | 41% | 37% | D+4 |
| Jan 21–23, 2018 | Fox News | Reg. Voters | 44% | 38% | D+6 |
| Jan 21–25, 2018 | Ipsos | Reg. Voters | 42% | 35% | D+7 |
| Jan 28–30, 2018 | YouGov/Economist | Reg. Voters | 42% | 37% | D+5 |
| Jan 28–30, 2018 | Monmouth | Reg. Voters | 47% | 45% | D+2 |
| Jan 25 – February 2, 2018 | IBD/TIPP | Reg. Voters | 46% | 41% | D+5 |
| Feb 2–5, 2018 | Quinnipiac University | Reg. Voters | 49% | 40% | D+9 |
| Feb 2–6, 2018 | Ipsos/Reuters | Adults | 38% | 31% | D+7 |
| Feb 4–6, 2018 | YouGov/Economist | Reg. Voters | 43% | 37% | D+6 |
| Feb 5–7, 2018 | Marist | Reg. Voters | 49% | 38% | D+11 |
| Feb 9–11, 2018 | PPP | Reg. Voters | 49% | 41% | D+8 |
| Feb 9–13, 2018 | Ipsos/Reuters | Adults | 39% | 30% | D+9 |
| Feb 11–13, 2018 | YouGov/Economist | Reg. Voters | 42% | 38% | D+4 |
| Feb 16–19, 2018 | Quinnipiac University | Reg. Voters | 53% | 38% | D+15 |
| Feb 16–19, 2018 | Harvard-Harris | Reg. Voters | 41% | 36% | D+5 |
| Feb 16–20, 2018 | Ipsos/Reuters | Adults | 38% | 30% | D+8 |
| Feb 18–20, 2018 | YouGov/Economist | Reg. Voters | 43% | 35% | D+8 |
| Feb 20–21, 2018 | Marist | Reg. Voters | 46% | 39% | D+7 |
| Feb 20–23, 2018 | CNN | Reg. Voters | 54% | 38% | D+16 |
| Feb 20–24, 2018 | USA Today/Suffolk | Reg. Voters | 47% | 32% | D+15 |
| Feb 23–27, 2018 | Ipsos/Reuters | Adults | 37% | 31% | D+6 |
| Feb 25–27, 2018 | YouGov/Economist | Reg. Voters | 40% | 38% | D+2 |
| Mar 1–4, 2018 | Rasmussen Reports | Likely Voters | 46% | 40% | D+6 |
| Mar 2–5, 2018 | Monmouth | Reg. Voters | 50% | 41% | D+9 |
| Mar 3–5, 2018 | Quinnipiac University | Reg. Voters | 48% | 38% | D+10 |
| Mar 2–6, 2018 | Ipsos/Reuters | Adults | 38% | 31% | D+7 |
| Mar 4–6, 2018 | YouGov/Economist | Reg. Voters | 43% | 37% | D+6 |
| Mar 4–8, 2018 | GWU/Battleround | Reg. Voters | 49% | 40% | D+9 |
| Mar 9–13, 2018 | Ipsos/Reuters | Reg. Voters | 48% | 30% | D+8 |
| Mar 10–13, 2018 | YouGov/Economist | Reg. Voters | 43% | 38% | D+5 |
| Mar 10–14, 2018 | NBC News/Wall Street Journal | Reg. Voters | 50% | 40% | D+10 |
| Mar 16–20, 2018 | Ipsos/Reuters | Reg. Voters | 40% | 37% | D+3 |
| Mar 16–20, 2018 | Quinnipiac | Reg. Voters | 49% | 43% | D+6 |
| Mar 18–20, 2018 | YouGov/Economist | Reg. Voters | 44% | 38% | D+6 |
| Mar 18–21, 2018 | Fox News | Reg. Voters | 46% | 41% | D+5 |
| Mar 19–21, 2018 | Marist | Reg. Voters | 44% | 39% | D+5 |
| Mar 23–25, 2018 | PPP | Reg. Voters | 50% | 39% | D+11 |
| Mar 22–25, 2018 | CNN | Reg. Voters | 50% | 44% | D+6 |
| Mar 25–27, 2018 | YouGov/Economist | Reg. Voters | 42% | 35% | D+7 |
| Mar 23–27, 2018 | Ipsos/Reuters | Reg. Voters | 42% | 35% | D+7 |
| Mar 27–29, 2018 | Harvard-Harris | Reg. Voters | 45% | 34% | D+11 |
| Mar 30 – April 3, 2018 | Ipsos/Reuters | Reg. Voters | 43% | 34% | D+9 |
| Apr 8–9, 2018 | Rasmussen Reports | Likely Voters | 45% | 40% | D+5 |
| Apr 8–10, 2018 | YouGov/Economist | Reg. Voters | 44% | 36% | D+8 |
| Apr 6–10, 2018 | Ipsos/Reuters | Reg. Voters | 44% | 34% | D+10 |
| Apr 6–9, 2018 | Quinnipac | Reg. Voters | 46% | 43% | D+3 |
| May 11–15, 2018 | Reuters/Ipsos | Reg. Voters | 38% | 37% | D+1 |
| May 13–15, 2018 | Economist/YouGov | Reg. Voters | 42% | 37% | D+5 |
| May 13–17, 2018 | Rasmussen | Likely Voters | 43% | 42% | D+1 |
| May 18–22, 2018 | Reuters/Ipsos | Reg. Voters | 39% | 37% | D+2 |
| May 20–22, 2018 | Economist/YouGov | Reg. Voters | 43% | 38% | D+5 |
| May 21–22, 2018 | Harvard-Harris | Reg. Voters | 44% | 37% | D+7 |
| May 21–25, 2018 | Rasmussen | Likely Voters | 43% | 42% | D+1 |
| May 25–29, 2018 | Reuters/Ipsos | Reg. Voters | 39% | 37% | D+2 |
| May 27–29, 2018 | Economist/YouGov | Reg. Voters | 42% | 39% | D+3 |
| May 27–31, 2018 | Rasmussen | Likely Voters | 45% | 41% | D+4 |
| May 29 – June 5, 2018 | IBD/TIPP | Adults | 47% | 40% | D+7 |
| May 31 – June 5, 2018 | Quinnipiac | Reg. Voters | 47% | 40% | D+7 |
| Jun 1–4, 2018 | NBC News/Wall Street Journal | Reg. Voters | 50% | 40% | D+10 |
| Jun 1–5, 2018 | Reuters/Ipsos | Reg. Voters | 43% | 32% | D+11 |
| Jun 3–5, 2018 | Economist/YouGov | Reg. Voters | 44% | 38% | D+6 |
| Jun 3–6, 2018 | Fox News | Reg. Voters | 48% | 39% | D+9 |
| Jun 3–7, 2018 | Rasmussen | Likely Voters | 44% | 40% | D+4 |
| Jun 5–12, 2018 | Pew Research Center | Reg. Voters | 48% | 43% | D+5 |
| Jun 8–10, 2018 | PPP | Reg. Voters | 46% | 40% | D+6 |
| Jun 8–12, 2018 | Reuters/Ipsos | Reg. Voters | 45% | 35% | D+10 |
| Jun 10–12, 2018 | Economist/YouGov | Reg. Voters | 43% | 37% | D+6 |
| Jun 10–14, 2018 | Rasmussen | Likely Voters | 45% | 41% | D+4 |
| Jun 12–13, 2018 | Monmouth | Reg. Voters | 48% | 41% | D+7 |
| Jun 11–17, 2018 | Gallup | Reg. Voters | 48% | 43% | D+5 |
| Jun 14–17, 2018 | CNN | Reg. Voters | 50% | 42% | D+8 |
| Jun 14–17, 2018 | Quinnipiac | Reg. Voters | 49% | 43% | D+6 |
| Jun 13–18, 2018 | USA Today/Suffolk | Reg. Voters | 45% | 39% | D+6 |
| Jun 15–19, 2018 | Reuters/Ipsos | Reg. Voters | 42% | 36% | D+6 |
| Jun 17–19, 2018 | Economist/YouGov | Reg. Voters | 44% | 37% | D+7 |
| Jun 17–21, 2018 | Rasmussen | Likely Voters | 45% | 41% | D+4 |
| Jun 24–25, 2018 | Harvard-Harris | Reg. Voters | 45% | 36% | D+9 |
| Jun 22–26, 2018 | Reuters/Ipsos | Reg. Voters | 41% | 38% | D+3 |
| Jun 24–26, 2018 | Economist/YouGov | Reg. Voters | 43% | 38% | D+5 |
| Jun 21–29, 2018 | IBD/TIPP | Adults | 48% | 40% | D+8 |
| Jun 27 – July 1, 2018 | Quinnipiac | Reg. Voters | 50% | 41% | D+9 |
| Jun 28 – July 2, 2018 | Reuters.Ipsos | Reg. Voters | 44% | 34% | D+10 |
| Jun 24–28, 2018 | Rasmussen | Likely Voters | 46% | 40% | D+6 |
| Jul 1–3, 2018 | Economist/YouGov | Reg. Voters | 42% | 38% | D+4 |
| Jul 1–5, 2018 | Rasmussen | Likely Voters | 48% | 40% | D+8 |
| Jul 6–7, 2018 | Emerson | Reg. Voters | 49% | 42% | D+7 |
| Jul 8–10, 2018 | Economist/YouGov | Reg. Voters | 42% | 38% | D+4 |
| Jul 9–11, 2018 | Fox News | Reg. Voters | 48% | 40% | D+8 |
| Jul 13–17, 2018 | Reuters/Ipsos | Reg. Voters | 44% | 35% | D+9 |
| Jul 8–12, 2018 | Rasmussen | Likely Voters | 46% | 41% | D+5 |
| Jul 15–17, 2018 | Economist/YouGov | Reg. Voters | 45% | 37% | D+8 |
| Jul 15–18, 2018 | NBC News/Wall Street Journal | Reg. Voters | 49% | 43% | D+6 |
| Jul 15–19, 2018 | Rasmussen | Likely Voters | 47% | 40% | D+7 |
| Jul 19–22, 2018 | NPR/PBS News Hour/Marist | Reg. Voters | 47% | 40% | D+7 |
| Jul 18–23, 2018 | Quinnipiac | Reg. Voters | 51% | 39% | D+12 |
| Jul 20–24, 2018 | Reuters/Ipsos | Reg. Voters | 42% | 37% | D+5 |
| Jul 22–24, 2018 | Economist/YouGov | Reg. Voters | 44% | 38% | D+6 |
| Jul 24–25, 2018 | Harvard-Harris | Reg. Voters | 43% | 36% | D+7 |
Notes
- Not including the Resident Commissioner of Puerto Rico, who serves a four-year term.
- Reflects the "Classic" version of the forecast model.
References
- Wasserman, David; Flinn, Ally (April 11, 2018). "Introducing the 2017 Cook Political Report Partisan Voter Index". Cook Political Report. Retrieved April 11, 2018.
- Wasserman, David (April 11, 2018). "New Pennsylvania Map Is a Major Boost for Democrats". Cook Political Report. Retrieved April 11, 2018.
- "2016 House Election Results". Politico. December 13, 2016. Retrieved February 14, 2017.
- "2018 House Race Ratings". Cook Political Report. Retrieved October 30, 2018.
- "2018 House Ratings". The Rothenberg Political Report. Retrieved November 5, 2018.
- "2018 House". Sabato's Crystal Ball. Retrieved November 5, 2018.
- "Battle for the House 2018". RCP. Retrieved November 5, 2018.
- "Daily Kos Elections 2018 race ratings". Daily Kos. Retrieved November 5, 2018.
- Silver, Nate (August 16, 2018). "2018 House Forecast". FiveThirtyEight. Retrieved November 6, 2018.
- "House Election Results: Democrats Take Control". The New York Times. November 7, 2018. Retrieved November 7, 2018.
- "Congress Generic Ballot Polls". FiveThirtyEight. Retrieved January 4, 2018., see downloadable data.
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