sentences:  In September of that year new Progressive Conservative Prime Minister John Diefenbaker made White his first appointment to the Senate so that Sidney Earle Smith, the newly appointed Secretary of State for External Affairs despite not being an MP could attempt to win a seat in the House of Commons through a by-election.White served as the government's whip in the Senate from 1958 until September 1962 when he was appointed Speaker.He only served in the Chair for a few months until the defeat of the Diefenbaker government in the 1963 federal election.