 Callaghan made agreements with the Liberals and later the Ulster Unionists, as well as the Scottish and Welsh nationalists, in order to remain in power.However, on 28 March 1979, following the defeat of the Scottish devolution referendum, Thatcher tabled a motion of no confidence in Callaghan's Labour government, which was passed by just one vote (311 to 310), triggering a general election five months before the end of the government's term.The Labour campaign was hampered by a series of industrial disputes and strikes during the winter of 1978–79, known as the Winter of Discontent, and the party focused its campaign on support for the National Health Service and full employment.