United States president-elect Donald Trump is doubling down on his plans to impose tariffs on Canada in his first news conference since the certification of his election win.

Canadian Prime Minister Justin Trudeau announces plans to step down after growing calls for his resignation. New York Times Canada Bureau Chief Matina Stevis-Gridneff and NBC News Correspondent Vaugh Hillyard explain what a new Canadian leader could mean for U.

President-elect Donald Trump on Tuesday continued to threaten significant tariffs and said he would be willing to use "economic force," rather than military force, to join Canada and the United States together.

President-elect Trump said Tuesday he was not considering using military force to make Canada part of the United States after repeatedly musing about the idea of the country becoming the 51st state. Instead,

Canada could fix its struggling economy by becoming the 51st state of the United States—at least that’s what Donald Trump believes. The US president, who has repeated this idea multiple times, says merging the two nations would save Canada from what he describes as its dire financial situation.