The U.S. House of Representatives has voted to end some of President Donald Trump’s tariffs on Canada, with a handful of Republican legislators delivering the White House a rare rebuke by joining the Democratic opposition to pass the measure.

The 219 to 211 vote – in which six Republicans broke with Mr. Trump – is mostly symbolic: even if it passes the Senate, the President will almost certainly veto it, a move that would require a two-thirds majority of each chamber of Congress to override.

But it signals a growing willingness by Mr. Trump’s once unfailingly loyal party to defy him on one of his signature policies amid mounting voter disapproval of his handling of the economy and the inflationary effects of his trade war.