Graham Brady, chairman of the 1922 Committee, which can make or break party leaders, told BBC Radio that May had been asked to give “clarity” at next Wednesday’s meeting after she failed to get her Brexit deal through parliament, leaving the government in a state of limbo.
“It would be strange for that not to result in a clear understanding (of when she will leave) at the end of the meeting,” he said.
May, who secured the leadership in the chaos that followed Britain’s 2016 vote to leave the European Union, has promised to step down if lawmakers back the deal she struck with Brussels to leave the bloc.
But the prime minister has lost heavily on three attempts to get it through parliament, defeated by lawmakers in her own party who want a much more comprehensive break from Brussels and those who want a second referendum to reverse the process.
Tensions within the Conservative Party have grown after May failed to deliver Brexit on the original deadline of March 29. The prime minister has since opened talks with the opposition Labour Party to try to find a compromise before the next departure date in October.
The deadlock damaged both parties at local elections earlier this month and could have a similar impact when elections are held for the European Parliament on May 23.