One expert warns Trump's "very dangerous and very disruptive policies toward Canadians" spark uncertainty north of the border.

The United States is banning the import of some dairy products and motorcycles from Canada along with most alcoholic beverages, the White House said Tuesday, as part of a trade war between the two neighbors and longtime allies that shows little sign of cooling off.

The Maine senator faces a tough reelection bid in one of the states most affected by Trump’s trade war with the northern neighbor.

President Donald Trump on Tuesday moved to sharply escalate the trade war with Canada, seeking to block the import of some autos, dairy products and alcohol.

With tariffs on U.S. goods in effect and high-profile international engagements coming up, the Canadian leader keeps moving toward his goal.

President Trump on Tuesday signed executive orders to ban the sale of Canadian dairy products, motor vehicles and many alcoholic beverages in the U.S., as the trade war between the two countries

Mining uranium is only the beginning of the nuclear fuel cycle. Before uranium can fuel most reactors, it has to be refined, converted, and, depending on the reactor, enriched and fabricated into fuel rods. Cameco participates in several of those steps.