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The election on 7 November was set for 10 a.m., but delayed by an hour as five MPs travelling from Melbourne were delayed by a faulty aircraft. With Speaker William Aston presiding, the 65 members of the Liberal partyroom took 49 minutes to elect a leader. Gorton won an absolute majority on the first ballot, but the final results were kept secret, with the ballot papers burnt immediately after being tallied. Alan Reid of The Daily Telegraph estimated Gorton had won 34 votes, while The Canberra Times estimated 38 votes; Gorton's supporters claimed up to 40 votes. The deputy leadership was also declared vacant, and McMahon was re-elected over Immigration Minister Billy Snedden and Postmaster-General Alan Hulme with about 35 votes, with Snedden receiving the majority of the rest.
After the challenge, Fairbairn resigned from cabinet and McMahon was demoted to Minister for External Affairs. Gorton resigned in March 1971 after a vote of confidence in his leadership was tied 33-33, and McMahon won the subsequent leadership contest against Billy Snedden.