(COMBO) This combination of pictures created on August 24, 2026 shows US President Donald Trump in the Oval Office of the White House in Washington, DC, on August 10, 2026 and Canadian Prime Minister Mark Carney in Ottawa, Canada on June 25, 2026. President Trump said on August 24, 2026, that he would double tariffs on Canadian vehicles beginning next year, as the neighboring countries spiral towards an escalating trade war. Trump's latest threat comes after the North American neighbors failed Friday to reach a deal to avert new 50-percent US tariffs on select Canadian goods. The duties took effect on Saturday. (Photo by Jim WATSON and Dave Chan / AFP via Getty Images)