Former British Prime Minister David Cameron | Ben Stansall/AFP via Getty Images David Cameron: ‘I don’t regret’ calling Brexit referendum Former PM says he supports Theresa May and hopes MPs ‘come together’ to find an agreement with the EU.

Former U.K. Prime Minister David Cameron, who called the referendum on Britain's membership of the European Union, said he did not regret that decision.

Cameron told the BBC, as he headed off for a morning run on Wednesday: "I don't regret calling the referendum. It was a promise I made two years before the 2015 general election — it was included in the manifesto, it was legislated for in parliament — six out of seven members of all parties voted for that referendum."

Cameron said he did regret losing the campaign to stay in the EU, noting the "difficulties and the problems we've been having trying to implement the result of that referendum."

Cameron resigned after the referendum and was replaced as prime minister by Theresa May, who will face a vote of confidence Wednesday evening after British MPs overwhelmingly rejected May's Brexit deal.

Cameron said he hoped May wins the vote of confidence, adding he was "sure she will."

"I hope then that parliament can come together and find an alternative partnership agreement with the European Union, that's the right way forward, that's what her deal was about last night and she has my support as she does this," Cameron said.