February 26 - James Gardiner becomes premier of Saskatchewan, replacing Charles Dunning
June 28 - the King-Byng Affair climaxes as Mackenzie King resigns as prime minister. Arthur Meighen becomes prime minister for the second time
June 28 - Alberta election: John Brownlee's United Farmers of Alberta win a second consecutive majority
September 14 - Federal election: the coalition of Mackenzie King's Liberals and the Liberal-Progressives win a majority, defeating Arthur Meighen's Conservatives
September 25 - Mackenzie King becomes prime minister for the second time, replacing Arthur Meighen
December 1 - Ontario election: Howard Ferguson's Conservatives win a second consecutive majority