Trump circles track at D.C. Grand Prix as tariff talks with Canada unravel

President Trump took a ceremonial motorcade lap at the Freedom 250 Grand Prix in Washington, part of the nation's 250th anniversary events. U.S. Trade Representative Jamieson Greer disclosed that Washington had offered to cut tariffs on Canadian steel, aluminum, and autos, and eliminate a lumber tax, but Ottawa rejected the deal. Canadian Prime Minister Mark Carney has pledged to retaliate with matching 50 percent tariffs.