Scottish Labour Party (1976) MP for South Ayrshire, John Robertson, then MP for Paisley and Alex Neil, the UK Labour Party's senior Scottish researcher. The split came just before the resignation of Harold Wilson as prime minister and party leader and the election of James Callaghan as his successor. By 1979 the Scottish Labour Party had lost its seats in the House of Commons, and in 1981 it was formally disbanded. Almost immediately the SLP became the focus for entryism from the International Marxist Group (IMG), and at the party's first congress in October 1976 the IMG was expelled, along with a number of
History of the Labour Party (UK) MacDonald was vehemently denounced by the Labour Party as a "traitor" and a "rat" for what they saw as his betrayal. Arthur Henderson, who had been elected in 1931 as Labour leader to succeed MacDonald, lost his seat in the 1931 General Election. The only former Labour cabinet member who survived the landslide was the pacifist George Lansbury, who accordingly became party leader. The party experienced a further split in 1932 when the Independent Labour Party, which for some years had been increasingly at odds with the Labour leadership, opted to disaffiliate from the Labour Party. The ILP embarked on