the constituency level. 1945 Federal By-Election: Glengarry In the 1945 general election, William MacDiarmid won the seat for the Liberals. He resigned the seat to allow King an opportunity to re-enter the House of Commons. Liberal Party leadership convention, 1919 King won the leadership after three completed ballots. His primary opposition was William Stevens Fielding, former premier of Nova Scotia and former Finance Minister in Laurier's governments. 1 Rounding error. See also Electoral history of Wilfrid Laurier - King's predecessor as leader of the Liberal party. Electoral history of Arthur Meighen - King's first predecessor as Prime Minister and opponent in three general elections. Electoral history of R. B. Bennett - King's second predecessor as Prime Minister and opponent in two general elections. Electoral history of Louis St. Laurent - King's successor as leader of the Liberal party and as Prime Minister. References External links History of Federal Ridings since 1867 Library of Parliament – Liberal Leadership Convention, 1919 King, William Lyon Mackenzie