Major defeat for British PM as lawmakers seize Brexit agenda

Remain supporters wave flags and hold signs as they protest opposite Parliament Square in London, Tuesday, Sept. 3, 2019. Parliament was reconvening Tuesday for a pivotal day in British politics as lawmakers challenge British Prime Minister Boris Johnson's insistence that the U.K. will leave the European Union on Oct. 31, 2019 even without a deal. (AP Photo/Matt Dunham)
Pro Brexit demonstrators gather and march at Parliament Square, in London, Tuesday, Sept. 3, 2019. Lawmakers returned from their summer recess Tuesday for a pivotal day in British politics as they challenged Prime Minister Boris Johnson's insistence that the U.K. leave the European Union on Oct. 31, even without a withdrawal agreement to cushion the economic blow. (AP Photo/Alberto Pezzali)

In this image released by the House of Commons, Britain’s Prime Minister Boris Johnson speaks in the House of Commons, London, Tuesday Sept. 3, 2019. British Prime Minister Boris Johnson suffered key defections from his party Tuesday, losing a working majority in Parliament and weakening his position as he tried to prevent lawmakers from blocking his Brexit plans. (Jessica Taylor/House of Commons via AP)

LONDON — On a day of humiliating setbacks, British Prime Minister Boris Johnson suffered a major defeat in Parliament on Tuesday night as rebellious lawmakers voted to seize control of the Brexit agenda, prompting the embattled prime minister to say he would call for a new general election.