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

The Canadian prime minister, who said on Monday he would step down, has spent a quarter-century in the political spotlight.

Canada’s prime minister prides himself as a fighter, but he just announced he won’t lead the Liberals’ next battle.

While Trudeau was initially applauded for returning Canada to its progressive past, he has become widely unpopular recently, ...