Ottawa bureau chief Stuart Thomson talks to Brian Lee Crowley, the managing director of the Macdonald-Laurier Institute, about strife in Prime Minister Justin Trudeau’s party and a crucial Liberal caucus meeting this week.

Since losing a byelection in the Toronto—St. Paul’s riding, a longtime Liberal stronghold, Trudeau has faced simmering discontent in his caucus, although it hasn’t quite erupted into public view. Some Liberal MPs have been organizing behind-the-scenes to confront Trudeau and urge him to resign, targeting Wednesday’s caucus meeting as the best opportunity to do so.