Britain's Prime Minister Theresa May leaves Downing Street in London, Britain April 1, 2019. REUTERS/Henry Nicholls

LONDON (Reuters) - Conservative lawmaker Richard Drax said on Monday that British Prime Minister Theresa May must commit to deliver Brexit on April 12 or resign immediately.

“If the prime minister cannot commit to taking us out of the EU on the 12th of April she must resign immediately,” Drax said in a statement to parliament. Drax also said he regretted voting for May’s deal on Friday, a vote which she ultimately lost.