In 1978, Diefenbaker announced that he would stand in one more election, and under the slogan "Diefenbaker—Now More Than Ever", weathered a campaign the following year during which he apparently suffered a mild stroke, although the media were told he was bedridden with influenza. In the May election Diefenbaker defeated NDP candidate Stan Hovdebo (who, after Diefenbaker's death, would win the seat in a by-election) by 4,000 votes. Clark had defeated Trudeau, though only gaining a minority government, and Diefenbaker returned to Ottawa to witness the swearing-in, still unreconciled to his old opponents among Clark's ministers. Two months later, Diefenbaker died of a heart attack in his study about a month before his 84th birthday.