Prime Minister David Cameron has piled the pressure on Jeremy Corbyn telling him to resign as Labour leader.
"It might be in my party's interest for him to sit there, it's not in the national interest and I would say, for heaven's sake man, go!" Cameron told Corbyn at the first Prime Minister's Questions since the Brexit vote.
ITV News' Chris Ship understands that Corbyn is ready to quit but is being urged to stay on by his closest aides.
Yet shadow Chancellor John McDonnell has told another ITV News correspondent that Mr Corbyn is "enjoying" the bitter fight between him and his MPs.
Jeremy Corbyn has faced a coup from his MPs since the referendum result, with many criticising what they called his "lacklustre" campaign for Britain to stay in the European Union.
He has suffered mass resignations from the shadow cabinet and a vote of no confidence.
He now faces an impending leadership contest with Angela Eagle a likely contender.
Former leader Ed Miliband has also added to the growing voices calling for him to resign, saying he must do the "right thing for the country".
But Corbyn still has the support of the unions, according to our Political Editor Robert Peston.