Despite having co-operated with the Liberals at the provincial level, Bracken was asked by a number of senior federal Conservatives (including Arthur Meighen) to take over the leadership of the weak national Conservative Party in 1942. He agreed to seek the party's leadership on the condition that it change its name to the Progressive Conservative Party. He was elected leader at the party's 1942 leadership convention. Bracken stepped down as Manitoba premier shortly thereafter, and was succeeded by Stuart S. Garson.