There were calls for Diefenbaker's retirement, especially from the Bay Street wing of the party as early as 1964. Diefenbaker initially beat back attempts to remove him without trouble. When Pearson called an election in 1965 in the expectation of receiving a majority, Diefenbaker ran an aggressive campaign. The Liberals fell two seats short of a majority, and the Tories improved their position slightly at the expense of the smaller parties. After the election, some Tories, led by party president Dalton Camp, began a quiet campaign to oust Diefenbaker.