Meet the contenders hoping to become Britain's next prime minister
Meet the contenders hoping to become Britain's next prime minister · CNBC
  • Whoever wins will have the unenviable task of trying to deliver Brexit after a political deadlock — and three failed parliamentary votes — brought down Theresa May who resigned as leader on Friday.

  • Fighting back tears, the outgoing prime minister said she had “done everything” she could to honor the 2016 EU referendum result.

The race to become the next leader of the Conservative Party, and consequently the next U.K. prime minister, has begun to accelerate with the first round of voting set to take place next week. 

Whoever wins will have the unenviable task of trying to deliver Brexit after a political deadlock — and three failed parliamentary votes — helped bring down Theresa May who resigned as leader on Friday.

CNBC takes a look at the Conservative lawmakers who are vying for power through the prism of Britain's withdrawal from the EU.

Boris Johnson

This is not the first Conservative leadership contest for the former foreign secretary and mayor of London, after he prematurely ended a previous attempt in 2016 that paved the way for May to enter Downing Street.

He is one of Britain's most globally prominent but domestically-divisive politicians. May brought him into her government in a senior role that left him responsible for Britain's presence on the world stage and frequently kept him away from Westminster.

He later resigned from his post as a result of May's willingness to lead the U.K. into what he called a "semi-Brexit" that would leave Britain as a "colony" of the European Union.

He has recently insisted that Britain must stick to the new October 31 Brexit deadline; that he would attempt to renegotiate the complex and contentious Northern Irish backstop contained within the Britain's withdrawal agreement with Brussels — something May tried and failed to do repeatedly. But absent changes to that backstop, Johnson has said he would take the U.K. out of Europe without a deal.

Dominic Raab

The former minister tasked with handling Brexit negotiations for May after his predecessor David Davis resigned, Raab stayed in the role for a little more than four months before he too quit in protest at the deal May finally struck with the EU.

He called the deal a betrayal of Conservative Party manifesto promises made during the 2017 general election campaign, insisting that the Irish backstop was undemocratic and that the deal threatened the integrity of the United Kingdom because of regulatory differences it would introduce for Northern Ireland.

Raab is another leadership contender who says Britain must leave the EU on October 31, perhaps even without a deal, and he has hinted that it might be possible for a prime minister to pursue that course of action unilaterally, without parliamentary approval.