The National Post reports in its Tuesday edition that Ontario's controversial $75-million Ronald Reagan ad has rankled President Donald Trump. The Post's Tracy Moran writes that last Thursday, Mr. Trump criticized the ad on Truth Social, claiming it misrepresented Mr. Reagan's legacy and challenged his own tariff policies. Mr. Trump's post did more than criticize the ad -- it also scuppered the U.S.-Canada trade negotiations. Mr. Trump later threatened to hike the tariffs on Canadian goods by 10 per cent. Weeks of renewed talks between U.S. and Canadian trade groups abruptly stopped, with a source close to the Trump administration saying negotiations were further along than known. Prime Minister Carney stated that negotiations on steel, aluminum and energy were advancing, with term sheets being exchanged. Mr. Trump's reaction has raised concerns among Canadians about his commitment to a long-lasting tariff deal. Additionally, the White House was reportedly upset by the PM's legal threat against Stellantis, following its decision to shift Jeep Compass production from Brampton, Ont., to the U.S. The Post says Ontario Premier Doug Ford's confrontational approach toward Mr. Trump is popular with a lot of Canadians.