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 has announced his resignation as the prime minister of Canada and suspended parliament while his party appoints a new leader. ABC News’ MaryAlice Parks breaks down the details in what may be the last major piece of legislation President Joe Biden will sign into law.