Justin Trudeau announced Monday that he was also stepping down as leader of Canada’s Liberal Party. He will remain in both roles until a replacement is chosen.

The Liberal Party will hold a leadership race to replace Trudeau. His successor will inherit a daunting list of challenges.

Canadian Prime Minister Justin Trudeau is expected to announce as early as Monday that he will resign as Liberal Party Leader, The Globe and Mail reported on Sunday, citing three sources.

The prime minister paid his respects to a late former U.S. president and later attended a committee meeting focused on the tariff threat from the incoming U.S. president, but Justin Trudeau’s return to Ottawa only re-ignited calls for him to resign.