Tory MPs tell Theresa May: We'll decide if you get to fight next election

The Prime Minister surprised Tory colleagues with her defiant statement during a trip to Japan, where she insisted she was "not a quitter" despite reports she would stand down after overseeing the Brexit process. Former party chairman Grant Shapps said it was "too early" to talk about going "on and on" and her comments would "raise eyebrows" among party members after the disastrous election result in June which saw May wipe out her Commons majority.

He also gave faint praise to the Government's Brexit strategy, saying people were "impressed by the Brexit papers, not necessarily even the contents, just that we were getting on with the job".

Shapps told BBC Radio 4's Today programme: "I think colleagues may well be surprised by this interview last night and I think it is too early to be talking about going on and on, as Margaret Thatcher once said. "Let's get some progress for the British people first, I think that's the priority."

He said the Prime Minister should be judged on her performance in the Brexit negotiations but that it was "probably the case" nobody wanted May to take on Jeremy Corbyn at the ballot box again.

Shapps, who was party chair during the successful 2015 election, said: "You can't go pretending it wasn't anything other than a disastrous result, of course it was.

"And you can't jump straight from that to 'I'll go on forever', you've got to have an in between stage.

"And the in between stage is delivering on some of the stuff we need to deliver."

It came as a number of senior Conservatives also cast doubt on s May's future.

Former cabinet minister Nicky Morgan said it would be "difficult" for s May to lead the party into the next election, while party grandee Lord Heseltine said she did not have a long-term future.

However, Foreign Secretary Boris Johnson, who has been touted as a possible successor to the Prime Minister, said she had his "undivided support".

On an official visit to Nigeria, Johnson said s May was "ideally placed" to deliver Brexit and he was "here to support her".

The Prime Minister made the comments during a three-day trip to Japan, where she is seeking to boost future trade relations after Brexit.

Asked if she intends to fight the next election, she said: "Yes. There's been an awful lot of speculation about my future which has no basis in it whatsoever.