The 2020 Ontario Liberal Party leadership election concluded on March 7, 2020, resulting in the election of Steven Del Duca, a former cabinet minister in the government of Kathleen Wynne, as Ontario Liberal Party’s 33rd leader. The leadership election took place following the resignation of Kathleen Wynne after over five years at the helm of the party. Her resignation took place on the evening of June 7, 2018, after the majority government led by her was defeated in the 2018 election and the party lost official party status.