Work’s Tom Watson is confronting a crisp offered to remove him as delegate pioneer by nullifying his post.
An underlying move was made at the gathering’s National Executive Committee (NEC) meeting on Friday however it neglected to get the 66% larger part required.
A further endeavor is set to be made on Saturday at the gathering’s meeting.
It is comprehended the movement was postponed by Jon Lansman, originator of Labor grassroots gathering Momentum.
The battle gathering was set up to help Jeremy Corbyn’s authority of the Labor Party.
Mr Watson has been inconsistent with Mr Corbyn over Labor’s position on Brexit.
He needs another open decision on the UK’s participation of the EU before any broad political decision, yet Mr Corbyn has said a political race should start things out.
Work should unequivocally back Remain, says representative
Where do the gatherings remain on Brexit?
Corbyn ‘will convey Brexit alternative individuals pick’
What’s Corbyn’s intuition on Brexit?
The gathering head has would not say which side he may in a future Brexit choice under a Labor government.
A Momentum source told the BBC: “We can’t stand to go into a political race with a delegate chief set on destroying Labor’s odds.
“Work individuals overwhelmingly need an appointee authority political race, however our obsolete rulebook won’t let it occur.”
Under Labor Party manages, any possibility to challenge the representative chief must be upheld by 20% of Labor MPs and MEPs.
Potential challengers may look for selections to trigger a delegate authority political race every year before the yearly party gathering.
Yet, assignments which don’t pick up the 20% limit won’t be taken forward.
The NEC, Labor’s administering body, will cast a ballot again on abrogating Mr Watson’s post at the gathering’s yearly meeting at 10:00 BST on Saturday.
Sources disclosed to BBC political proofreader Laura Kuenssberg they anticipated that the vote should be passed.
There will at that point be a decision on the meeting floor toward the evening, where the offer could be endorsed, removing Mr Watson.
BBC political columnist Jessica Parker said Mr Watson’s supporters were “not excessively hopeful” that he will win Saturday’s vote.
By Jessica Parker, political journalist
Gatherings should be an opportunity for involved with feature its strategies and depict solidarity – particularly when a general political decision could be around the bend.
In any case, the updates on this push to expel Tom Watson – by abrogating the activity he was chosen for – has started a breathtaking conflict as individuals assemble in Brighton.
An “absurd diversion”? Unnecessarily “pointless”? That is absolutely what some enraged Labor MPs think.
But on the other hand it’s consistent with state that Tom Watson has a lot of pundits. The individuals who believe that the delegate has over and over undermined the pioneer, not least by straying on Brexit strategy.
So is Tom Watson’s defeat unavoidable? Not exactly. A great deal could yet occur – and even the individuals who aren’t enthused about the present appointee may ponder whether this is the most ideal approach to commence the Labor Party Conference.
Various Labor MPs, including previous pioneer Ed Miliband, have sentenced the offered to expel Mr Watson.
He tweeted that the individuals who had thought of the plan to nullify the delegate head post had “lost their mind”.
Neither Mr Corbyn nor Mr Watson were at Friday’s NEC meeting.
A senior Labor source stated: “Tom had given his conciliatory sentiments to the NEC… as he needed to care for his kids.