The Canadian Liberal hegemony was disrupted 3 times in the period stipulated, and the Liberal Party has just all-around been more of a government party than the Dems or Tories.
Three? Dief, Clarke, who is the third?
I'd still throw out the Canadian Liberals in the half century from 1935-1984 as one of the most dominaint groups in the West.
Their spells out of power in that stretch:
A single Tory majority (after winning five majorities in a row and losing their 6th on the campaign trail)
Three Tory minorities
Combined length: about 6.5 years... 6.5 years out of power in a half century.
Not OP but I presumed the 3rd disruption meant the end via Mulroney.
Poll
