[Yoho]

Originally Posted by MarchHare

Thirty seconds of Google searching would have shown you that you're wrong about this. In addition to Wilfred Laurier, you also forgot about:

John A. MacDonald who won six elections (1867, 1872, 1878, 1882, 1887, 1891). The Liberals under Alexander Mackenzie won one election in 1874 to break up MacDonald's streak.

Mackenzie King who won six elections (1921, 1925, 1926, 1935, 1940, 1945), although there was a one-term Conservative government between King's third and fourth election victories. Following King's retirement, his Liberal Party also won the next two elections under leader Louis St-Laurent (1949, 1953).

Pierre Trudeau who won four elections (1968, 1972, 1974, 1980) with a one-year break in 1979 during which Conservative Joe Clark led a short-lived minority government. Prior to Trudeau, the Liberals had also won the previous two elections with leader Lester Pearson (1963, 1965).

4 in a row.