During the 1990s, the sovereignty movement was at its height. Jean Charest, who was a big part of the "No" campaign in 1995, had won the support of many federalists from Quebec. This is why he joined the Liberal Party of Quebec in 1998, as the leader of the party. In 1998, Charest participated at his first election as a leader of a party. He received more votes than his opponent, but did not reach the majority. He stayed as official Leader of the Opposition until 29 April 2003.