On 26 November 1966, Holt fought his first and only general election as prime minister, winning a somewhat unexpected landslide victory. The Coalition secured 56.9 percent of the two-party-preferred vote, gaining 10 seats and bringing its total number of seats in the House of Representatives to 82 out of 124; the Liberal Party was only two seats away from forming majority government in its own right. It was a higher margin victory of victory than Menzies had achieved in eight elections as Liberal leader, and was the Labor Party's worst electoral defeat in 31 years.