In the <a href="https://en.wikipedia.org/wiki/1958_Canadian_federal_election" id="mw-w" rel="mw:WikiLink" title="1958 Canadian federal election">Canadian federal election</a>, the <a href="https://en.wikipedia.org/wiki/Progressive_Conservative_Party_of_Canada" id="mw_A" rel="mw:WikiLink" title="Progressive Conservative Party of Canada">Progressive Conservatives</a>, led by <a href="https://en.wikipedia.org/wiki/John_Diefenbaker" id="mw_Q" rel="mw:WikiLink" title="John Diefenbaker">John Diefenbaker</a>, win the largest percentage of seats in Canadian history, with 208 seats of 265.