UK Prime Minister Theresa May is fighting to keep her job as members of her Conservative Party seek to oust her in a no-confidence vote. May has been unable to shore up support for the Brexit deal she negotiated with the European Union.

"I will contest that vote with everything I've got," May said outside of 10 Downing Street, referring to the vote on her leadership that will take place from 6 p.m. to 8 p.m. local time (1 p.m. - 3 p.m. ET).

"If she wins, she can serve for another year without another challenge from her party," NPR's Frank Langfitt reports from London. "If she loses, this triggers a leadership contest within the Conservative Party. The winner of that contest would not immediately become prime minister and there could be heavy pressure to call a general election."

If May loses her leadership post, it could trigger a "no-deal" exit from the EU when the deadline of March 29 arrives, meaning the country would have few formal mechanisms in place to interact with the union it's belonged to for decades.

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