1983 United Kingdom general election

Michael Foot was elected leader of the Labour Party in 1980, replacing James Callaghan. The election of Foot signalled that the core of the party was swinging to the left and the move exacerbated divisions within the party. In 1981 a group of senior figures including Roy Jenkins, David Owen, Bill Rodgers and Shirley Williams left Labour to found the Social Democratic Party (SDP). The SDP agreed to a pact with the Liberals for the 1983 election and stood as "The Alliance".

The election did not have to be held for another year. Although political circumstances were clearly favourable for the government and opposition parties anticipated that Mrs Thatcher would go to the country in June, earlier in 1983 the Conservatives were split on the timing of the election. One faction favoured a June election, but another group wanted to wait until October before going to the country, while some within the Party even advocated delaying the contest until 1984. Supporters of waiting to a later time to hold an election included Thatcher's deputy and Home Secretary Willie Whitelaw and John Biffen who was then serving as Leader of the House of Commons.[5] On 27 April it was reported that all the Conservative party's regional agents had unanimously expressed a preference to Thatcher for a June election, although some members of her cabinet were advising her to wait until October.[6] On 8 May senior Conservatives met at Chequers and agreed to go to the country on 9 June. The election was formally called the next day and Parliament was dissolved on 13 May for a four-week official election campaign.[5]

The campaign displayed the huge divisions between the two major parties. Thatcher had been highly unpopular during her first two years in office until the swift and decisive victory in the Falklands War, coupled with an improving economy, considerably raised her standings in the polls. The Conservatives' key issues included employment, economic growth and defence. Labour's campaign manifesto involved leaving the European Economic Community, abolishing the House of Lords, abandoning the United Kingdom's nuclear deterrent by cancelling Trident and removing cruise missiles—a programme dubbed by Labour MP Gerald Kaufman "the longest suicide note in history"; "Although, at barely 37 pages, it only seemed interminable", noted Roy Hattersley. Pro-Labour political journalist Michael White, writing in The Guardian, commented: "There was something magnificently brave about Michael Foot's campaign but it was like the Battle of the Somme."[7]

Following boundary changes in 1983, the BBC and ITN (Independent Television News) co-produced a calculation of how the 1979 general election would have gone if fought on the new 1983 boundaries. The following table shows the effects of the boundary changes on the House of Commons:

Prime Minister Margaret Thatcher visited Buckingham Palace on the afternoon of 9 May and asked the Queen to dissolve Parliament on 13 May, announcing that the election would be held on 9 June. The key dates were as follows:

The election saw a landslide victory for the Conservatives, achieving their best results since 1935. Although there was a slight drop in their share of the vote, they made significant gains at the expense of Labour. The night was a disaster for the Labour Party; their share of the vote fell by over 9%, which meant they were only 700,000 votes ahead of the newly-formed third party, the SDP–Liberal Alliance. The massive increase of support for the Alliance at the expense of Labour meant that, in many seats, the collapse in the Labour vote allowed the Conservatives to gain. Despite winning over 25% of the national vote, the Alliance got fewer than 4% of seats, 186 fewer than Labour. The most significant Labour loss of the night was Tony Benn, who was defeated in the revived Bristol East seat. SDP President Shirley Williams, then a prominent leader in the Social Democratic Party, lost her Crosby seat which she had won in a by-election in 1981. Bill Rodgers, another leading figure in the Alliance (like Williams, one of the "Gang of Four") also failed to win his old seat that he previously held as a Labour MP.

In Scotland, both Labour and the Tories sustained modest losses to the Alliance. Labour remained by far the largest party, with 41 seats to 21 for the Scottish Conservatives. The Scottish Conservatives have been unable to match their 1983 Westminster seat total since, although they did record a slightly larger share of the Scottish vote in 2017, by which time the Scottish National Party had become the dominant party in Scotland with the Tories being the largest unionist party.

On a UK-wide basis, the 1983 election was the worst result in Labour's modern history until the 2019 election. The 1983 result remains the worst-ever modern performance for Labour in England.

Votes summary

Seats won in the election (outer ring) against number of votes (inner ring)

Popular vote Conservative   42.43% Labour   27.57% SDP–Liberal   25.41% Others   2.4%

Seats summary

Parliamentary seats Conservative   61.08% Labour   32.15% SDP–Liberal   3.54% Others   3.23%

Data from Guardian daily polls published in The Guardian between May and June 1983. Colour key:

•   Conservative
•   Labour
•   Alliance
•   Others

The disproportionality of the House of Commons in the 1983 election was "20.62" according to the Gallagher Index, mainly between the Conservatives and the Alliance.

• List of MPs elected in the 1983 United Kingdom general election
• 1983 United Kingdom general election in Northern Ireland
• 1983 United Kingdom general election in England
• 1983 United Kingdom general election in Wales
• 1983 United Kingdom local elections

• Butler, David E.; et al. (1984), The British General Election of 1983, the standard scholarly study
• Craig, F. W. S. (1989), British Electoral Facts: 1832–1987, Dartmouth: Gower, ISBN 0900178302
• Clarke, Harold D.; Mishler, William; Whiteley, Paul (1990), "Recapturing the Falklands: models of Conservative popularity, 1979–83", British Journal of Political Science, 20 (1): 63–81, doi:10.1017/S0007123400005706

• The Challenge of Our Times, 1983 Conservative Party manifesto
• The New Hope for Britain, 1983 Labour Party manifesto
• Working Together for Britain, 1983 SDP–Liberal Alliance manifesto