Jeremy Corbyn won't be going down without a fight.
With support within the Parliamentary Labour Party dwindling, an impending leadership challenge from Angela Eagle and prime ministers past and present calling on him to step down, it's been a difficult day for the Labour leader.
After a defiant speech to supporters this evening, we take a look at where he stands.
Corbyn was clear in his desire to continue as Labour leader as he spoke to supporters in London this evening.
He said while he recognised not everybody supported the direction he was taking the party, he had the mandate to carry on.
To cheers from his supporters, he said: "The mandate was given by hundreds of thousands of ordinary people joining in the political process, just as is happening across Europe, just as is happening across the United States because they want to see a politics that is more reflective of them, their lives, their community and aspirations rather than the economic orthodoxy of the retreat of the wealth to the wealthiest that the poor may get poorer. It is simply immoral and wrong.
"Surely together we have strength. Surely together we can harness the technology we've got and not be afraid of press barons who attack us.
"That's why we contested the leadership of this party a year ago, that's why I'm very proud to be carrying on with that work."
While the unions and many Labour members remain firmly behind Corbyn, at Westminster his support is dwindling.
Shadow chancellor John McDonnell continues to be Corbyn's chief advocate. He described the Parliamentary Labour Party as "like a lynch mob without the rope", adding: "Jeremy won a mandate last summer and there are a handful of MPs who couldn't accept that mandate - we've been expecting a coup any time since then.
"We have been trying to explain to some members of the PLP there's a recent Greek invention and it's called democracy.
"What democracy means is that people come together with each having a vote, and when that vote has a majority, that decision should be abided by - this is a battle for democracy."
Former leaders Ed Miliband and Gordon Brown were the latest to join calls for Corbyn to quit - while even David Cameron said at Prime Minister's Questions he should stand down "in the national interest".
There were more resignations from Corbyn's shadow cabinet, with shadow education secretary Pat Glass quitting just two days after being appointed to the post saying the situation was "untenable".
Deputy leader Tom Watson, who tried and failed to convince Corbyn to stand down, said: "My party is in peril, we are facing an existential crisis and I just don't want us to be in this position because I think there are millions of people in this country who need a left-leaning government."
Watson said Corbyn had "obviously been told to stay by his close ally John McDonnell" and added that the party was heading towards a contested leadership election.
Former shadow business secretary Angela Eagle is expected to announce her intentions on Thursday, with reports suggesting she will run as a "unity" candidate.
If she wants to challenge the leader, party rules say she would require the support of at least 20% of their parliamentary colleagues - at current levels, with 229 MPs, that equates to almost 50 signatures.
Those MPs would have to signal their support for a challenger by writing to the party's general secretary and then a formal contest would take place at the Labour Party's autumn conference at the end of September.
All indications are that Corbyn would run and, given he got 59.5% of the vote from members, affiliates and registered supporters last time, his supporters are confident he would win again.
Leading unions continue to stick by Corbyn, urging Labour MPs to respect his authority as party leader.
A statement from unions including Unite, Unison, Aslef and more read: "Jeremy Corbyn is the democratically-elected Leader of our party who secured such a resounding mandate less than ten months ago under an electoral procedure fully supported by Labour MPs.
"His position cannot and should not be challenged except through the proper democratic procedures provided for in the party's constitution.
"We urge all Labour MPs to abide by those procedures, and to respect the authority of the party's Leader."
The Public and Commercial Services union, the biggest civil service union, also backed Corbyn in the face of what it called "clearly a choreographed and undemocratic attempt to unseat him".