Can Trump dump CUSMA? Yes he can, says trade lawyer

U.S. President Donald Trump walks to board Marine One as he departs from the South Lawn of the White House in Washington, D.C., on Sept. 23, 2026.

Mark Warner, principal of MAAW Law, talks with Financial Post’s Larysa Harapyn about the difficulties Canada will have in reaching a trade deal with the United States after Prime Minister Mark Carney walked away from negotiations. Meanwhile, U.S. talks with Mexico are advancing.

• Email: lharapyn@postmedia.com