Leonard James Callaghan, Baron Callaghan of Cardiff, KG, PC (/ˈkæləˌhæn/; 27 March 1912 – 26 March 2005), often known as Jim Callaghan, served as Prime Minister of the United Kingdom from 1976 to 1979 and Leader of the Labour Party from 1976 to 1980. Callaghan is, to date, the only British politician to have served in all four of the Great Offices of State, having been Chancellor of the Exchequer (1964–1967), Home Secretary (1967–1970), and Foreign Secretary (1974–1976) prior to his appointment as Prime Minister. As Prime Minister, he had some successes, but is mainly remembered for the "Winter of Discontent" of 1978–79. During a very cold winter, his battle with trade unions led to massive strikes that seriously inconvenienced the public, leading to his defeat in the polls by Conservative leader Margaret Thatcher.Read about James Callaghan in Wikipedia
It is quite clear from what has been said and written that, time after time after time, there has been a conspiracy between the Conservative Front Bench in this House and the inbuilt Conservative majority in the House of Lords to defeat legislation that has passed through the House of Commons. . . I warn the House of Lords of the consequences. . . it is our strong view that the House of Lords should recall that its role is not that of a wrecking chamber, but of a revising chamber. In recent weeks, it has been wrecking legislation passed by this House.