After nearly a decade in power, Canadian Prime Minister Justin Trudeau finally bowed to a chorus of criticism that had become too loud to ignore, announcing his resignation on Monday. Among the loudest critics was one of his most loyal and longest-serving deputies.

Justin Trudeau resigned as Canada's prime minister on Monday. Here's why and what it means for the United States.

Canada's Prime Minister Justin Trudeau speaks to reporters, announcing he intends to step down as Liberal Party leader, but he will stay on in his post until a replacement has been chosen, from his Rideau Cottage residence in Ottawa,