The latest trade tiff between the U.S. and Canada comes as the two countries face off in a different arena: the World Series.

President Donald Trump pulled out of trade talks with Canada Thursday night, furious over what he called a “fake’’ television ad from Ontario’s provincial government that quoted former U.S.

A slate of prominent economists from across the political spectrum, including former Federal Reserve Chairs Ben Bernanke and Janet Yellen, urged the US Supreme Court to overturn most of President Donald Trump’s global tariffs,

U.S. President Donald Trump announced on Thursday that he had terminated trade negotiations with Canada in response to an advert produced by the government of Ontario featuring historic footage of President Ronald Reagan arguing that tariffs undermine economic prosperity.

The president has frequently spoken about the potentially drastic consequences if the Supreme Court strikes down his sweeping tariffs, a view contested by his opponents.

Ontario Premier Doug Ford says he’s pulling the TV ad that caused President Donald Trump to say he was ending trade negotiations with Canada.

Trump’s trade policies have centered around ‘reciprocal’ tariffs on an array of other countries. The president pushed forward a 35 percent tariff on many imports from Canada, although goods under the United States-Mexico-Canada Agreement have largely been excluded.

President Donald Trump said he's terminating trade negotiations with Canada citing a negative TV advertisement about tariffs.

The leader of Canada's most populous province posted remarks by former U.S. President Ronald Reagan on social media on Friday showing Reagan opposed tariffs, hours after President Donald Trump announced he’s ending “all trade negotiations” with Canada because of a television ad that Trump said misstates Reagan's opposition to

Posting on his Truth Social site on Oct. 22, Trump said General Motors chair and CEO Mary Barra and Ford Motor Co. executive chair Bill Ford called him personally to thank him for the tariffs. Trump noted that since the tariffs were announced by the White House on Oct. 17, stock prices for the two automakers have "gone through the roof!"

This past summer, Donald Trump’s faith in tariffs appeared vindicated. He sealed lopsided trade deals with the EU, Japan and South Korea, while imposing most of his promised “liberation day” levies without provoking a market meltdown.

Joe Scarborough said the ad, featuring an April 25, 1987, address from the former president, “reflected Reagan’s feelings about tariffs 100%.”