1877 United States Senate election in Massachusetts

At the time, the Massachusetts legislature was dominated the Republican Party. The Senate was composed of 30 Republicans and 10 Democrats,[1] and the House had 178 Republicans and 62 Democrats.[2] However, if a split within the Republican Party emerged, Democrats could hold the balance and decide the election.

The election took place against the backdrop of the contested 1876 presidential election. Several potential or actual candidates were involved in the Compromise of 1877 and the ongoing controversy may have affected the result.

• George S. Boutwell, incumbent Senator
• George F. Hoar, U.S. Representative from Worcester
• Julius Hawley Seelye, U.S. Representative from Amherst[3][4]

General Benjamin Butler, an eccentric and prominent figure in Massachusetts politics and a key supporter of Senator Boutwell.

George Boutwell, the former Governor and incumbent interim Senator, was backed by Benjamin F. Butler and the patronage wing of the Republican Party. He was challenged by U.S. Representative George Frisbie Hoar, a reformist who had supported Benjamin Bristow at the 1876 Republican National Convention.

The following candidates were mentioned as potential candidates or received votes, but did not openly declare their willingness or desire to be elected.

• Alexander Bullock, former Governor of Massachusetts[5]
• Charles Devens, Judge of the Massachusetts Supreme Judicial Court and former Civil War general[3]
• Alexander H. Rice, Governor of Massachusetts[3]
• John E. Sanford, former Speaker of the Massachusetts House of Representatives[6]

Other candidates mentioned included Governor Alexander H. Rice, who had the backing of prohibitionists on the basis that his election would elevate prohibitionist Republican Horatio G. Knight to the Governor's office, Judge Charles Devens, and U.S. Representative Julius Hawley Seelye.[3] Rice was also rumored to have the support of Butler in the event Boutwell became non-viable, as this would clear the nomination for 1877, and Butler greatly coveted the office of Governor.[3]

Democrats, under the direction of Frank Bird,[5] were expected to cast a ceremonial vote for Josiah Abbott[3] or William Gaston before throwing their support to a competitive candidate, possibly former Republican Governor Alexander Bullock, who was aligned with Bird.[5] Democrats were expected to oppose Hoar as an alternative to Boutwell.[3]

On January 16, the General Court convened and began to cast votes in each house, separately.

Second House ballot[7][8]

Party		Candidate	Votes	%	±%
	Republican	George S. Boutwell (inc.)	79	33.62%	1
	Republican	George Frisbie Hoar	77	32.77%	1
	Democratic	Josiah Abbott	55	23.40%
	Republican	Alexander H. Rice	15	6.38%
	Republican	Alexander Bullock	4	1.70%
	Republican	Julius Hawley Seelye	4	1.70%
	Republican	John E. Sanford	1	0.43%
Total votes			235	100.00%

The first day of balloting was seen as a victory for Hoar, as Boutwell's support was much lower than his supporters claimed.[7][8] Democrats voted in a caucus to continue to support Abbott.[8]

After the first day, it was conceded the Boutwell could not be elected, and the question became whether Republicans would rally to Hoar or try to find a third candidate.[8]

On the second day of balloting, the two houses of the General Court met in joint convention, rather than separately.[9]

After the first ballot, Senator Brimball and Ginnodo changed their votes from Boutwell to Hoar. Abbott gained a voted after Representative Glynn voted, having missed the first ballot.

Second joint ballot[9]

Party		Candidate	Votes	%	±%
	Republican	George Frisbie Hoar	95	34.42%	2
	Republican	George S. Boutwell (inc.)	93	33.70%	2
	Democratic	Josiah Abbott	62	22.46%	1
	Republican	Alexander H. Rice	17	6.16%
	Republican	Alexander Bullock	4	1.45%
	Republican	Julius Hawley Seelye	4	1.45%
	Republican	John E. Sanford	1	0.36%
Total votes			276	100.00%

On the third day of balloting, Senator James G. Blaine was in attendance.[10] Secretary of the Treasury Justin Morrill sent a letter endorsing Boutwell and imploring his re-election, but it did not appear to have any effect on the vote.[11]

Third joint ballot[12]

Party		Candidate	Votes	%	±%
	Republican	George Frisbie Hoar	100	36.50%	5
	Republican	George S. Boutwell (inc.)	88	32.12%	5
	Democratic	Josiah Abbott	62	22.63%
	Republican	Alexander H. Rice	17	6.20%
	Republican	Alexander Bullock	4	1.46%
	Republican	Julius Hawley Seelye	3	1.09%	1
Total votes			274	100.00%

Fourth joint ballot[12]

Party		Candidate	Votes	%	±%
	Republican	George Frisbie Hoar	104	37.96%	4
	Republican	George S. Boutwell (inc.)	83	30.29%	5
	Democratic	Josiah Abbott	62	22.63%
	Republican	Alexander H. Rice	17	6.20%
	Republican	Alexander Bullock	4	1.46%
	Republican	Julius Hawley Seelye	4	1.46%	1
Total votes			274	100.00%

Fifth joint ballot[12]

Party		Candidate	Votes	%	±%
	Republican	George Frisbie Hoar	146	52.52%	42
	Democratic	Josiah Abbott	62	22.30%
	Republican	George S. Boutwell (inc.)	47	16.91%	36
	Republican	Alexander H. Rice	19	6.83%	2
	Republican	Alexander Bullock	2	0.72%	2
	Republican	Julius Hawley Seelye	1	0.36%	3
	Republican	Paul A. Chadbourne	1	0.36%	1
Total votes			278	100.00%

During the ballot, many Boutwell men changed their votes to Hoar after realizing he would win.