The next Ontario Liberal Party leadership election will be held following the resignation of Steven Del Duca on June 2, 2022 after the party won only 8 seats and failed again to gain official party status in the general election. The date of the leadership election will be decided in March 2023. Background In the 2022 general election, the Ontario Liberals saw a modest increase in support over their 2018 result, finishing second in the popular vote. However, the party won only 8 seats, once again falling short of official party status. On the night of the election, Del Duca, who had failed to win back his own riding of Vaughan—Woodbridge, announced his resignation as party leader, stating that a leadership race would be organized to take place "as soon as is reasonable". Rules and procedures Under the procedure outlined by the party's constitution, the leader is likely to be chosen in a traditional delegated leadership convention in which up to 2,000+ delegates would be eligible to vote, made up of 1,984 elected delegates (16 elected by proportional representation in each of the 124 provincial riding associations) in addition to ex officio delegates (current and former Liberal MPPs, defeated candidates from the last election, riding association presidents, party executive officers and other party officials, and federal Liberal MPs for Ontario), youth delegates from campus clubs and delegates representing the Women's Commission. Riding delegates would be able to run on the slate of a leadership candidate or as independents; in the case of the former they would be required to vote for that candidate on the first ballot but would be free to change their support subsequently. Balloting at convention would continue until one candidate receives a majority of ballots cast. At the party's Annual General Meeting in 2019, an organized attempt was made to amend the party constitution to change the leadership election system to eliminate the delegated convention and adopt a weighted One Member One Vote point system similar to the ones used by the Progressive Conservatives and the federal Liberal Party. The amendment was supported by 57% of delegates, but failed to receive the two-thirds majority required for it to pass. A constitutional amendment will be voted on at the March 2023 Annual General Meeting which would change the leadership election process from a delegated convention to a One Member One Vote system weighted by constituency. Timeline June