British lawmakers had been scheduled to vote on the agreement on Tuesday, but after a debate in which it came under attack not only from the opposition but also from many members of her own Conservative Party, Mrs. May delayed the vote on Monday, acknowledging that her plans had faced defeat “by a significant margin.”

Her retreat undermined the tenuous hold on power by a prime minister whose opponents, both inside and outside her party, have been speaking openly about trying to topple her.
Prime Minister Theresa May announces the deferral of the meaningful vote on the UK's negotiated withdrawal agreement from the European Union that was scheduled for tomorrow.