During the 1939 Quebec election campaign, the Dominion government made an unprecedented intervention in a provincial election in order to defeat the "Union Nationale" government and ensure the victory of the pro-war Quebec Liberals under Adélard Godbout with all the resources of the Dominion government being thrown behind the provincial Liberals. All of the Dominion cabinet ministers representing ridings in Quebec threatened to resign if Duplessis was re-elected, with the threat that there would be nobody to stand up for Quebec in the cabinet if conscription become an issue again. Duplessis was a charismatic, colourful demagogue who preached a mixture of Catholic conservatism and Quebec nationalism who was one of Quebec's ablest politicians, a man King feared so much that in the 1939 election the Prime Minister used the powers of censorship under the War Measures Act to keep Duplessis from speaking on the radio.