In November 2003, Martin was elected as Liberal leader by capturing 3,242 of 3,455 delegates. He had won the leadership almost unopposed, due to his hold on the party machinery, and because Chrétien supporters did not rally around either of Martin's leadership opponents (with Martin's large lead, even most Chrétien supporters grudgingly voted for Martin). Potential contenders Brian Tobin and Allan Rock never formally entered the race, while John Manley dropped out and Sheila Copps received at most marginal support. Martin was sworn in as Prime Minister in December.