President Donald Trump said in a social media post Saturday that a Canadian TV ad criticizing tariffs was a “hostile act,” and in response, “I am increasing the Tariff on Canada by 10% over and above what they are paying now.

The measure was in response to what the U.S. president called “misrepresentation” of Ronald Reagan’s comments.

Trump abruptly scrapped trade negotiations in response to an ad against tariffs that featured clips of Ronald Reagan.

Republican Sen. David McCormick defended Donald Trump’s latest controversial moves in a rare interview, including the president’s $230 million request for the Justice Department to pay his legal bills, the demolition of the White House’s East Wing, and his party’s handling of the government shutdown.

Ontario's ad criticizing tariffs aired during the World Series, hours after President Donald Trump said he'd slap new tariffs on Canada.

In June, the Pew Research Center found that 74 percent of Americans hold favorable views of Canada, while 34 percent view the country unfavorably. Their polling on Trump’s approval tells a similar story as Gallup. It began at 47 percent but dropped to 38 percent in August.

Trump threatened once again to turn the key economic relationship between the United States and its second-biggest trading partner topsy-turvy.