Party Leaders

Party Leaders Remained as Prime Minister while no longer Party Leader

^ Liberal Party of Canada

Name	Term as Party Leader (yyyy.mm.dd)	Term as Prime Minister (yyyy.mm.dd)	Duration
King, William Lyon Mackenzie	1919.08.07 - 1948.08.06	1935.10.23 - 1948.11.14	3 months, 9 days
Chrétien, Joseph Jacques Jean	1990.06.23 - 2003.11.13	1993.11.04 - 2003.12.11	28 days
Pearson, Lester Bowles	1958.01.16 - 1968.04.05	1963.04.22 - 1968.04.19	14 days
Trudeau, Pierre Elliott	1968.04.06 - 1984.06.15	1980.03.03 - 1984.06.29	14 days

^ Progressive Conservative Party

Name	Term as Party Leader (yyyy.mm.dd)	Term as Prime Minister (yyyy.mm.dd)	Duration
Mulroney, Martin Brian	1983.06.11 - 1993.06.12	1984.09.17 - 1993.06.24	12 days