Jeremy Corbyn's newly formed hard-left Your Party has surpassed Reform UK's 230,000 membership base in the form of unpaid sign ups, co-leader Zarah Sultana has claimed.
Corbyn, who cemented 532,000 paid-up Labour members in 2019, has been documenting Your Party's mailing list surge on social media.
Your Party was already targeting Reform UK's 12-month surge within its first 24 hours of officially forming, with Blackburn MP Adnan Hussain sharing the turquoise tally to motivate supporters.
However, unlike all of Britain's major political parties, Corbyn supporters do not need to pay to sign up to join Your Party.
There is a separate option to donate to Your Party ahead of an inaugural conference later this year, leaving critics to claim Corbyn's sign up milestone is nothing more than a glorified mailing list.
Sharing the news that Your Party's sign ups had overtaken Reform UK's membership, Sultana said: "We’ve reached 230,000 sign ups.
"That’s more than Reform’s membership ... Your boys are taking one hell of a beating. Labour, you’re next."
Corbyn's new hard-left party, which is expected to rename following a vote at the upcoming conference, is pro-Gaza, believes in tackling climate change and redistributing wealth around the country.
Despite overtaking Reform UK's membership, Your Party's sign ups appear to pose an even bigger threat to Sir Keir Starmer's Labour Party
PA | Former Labour leader Jeremy CorbynA recent Find Out Now opinion poll found that a Corbyn-Sultana party could match Starmer's support on 15 per cent, taking six per cent from both Labour and the Greens.
Meanwhile, Reform UK would hoover up 34 per cent of the vote, leaving the Tories in a distant second on 17 per cent.
The Liberal Democrats would also take a modest two-point hit to see its support collapse to just nine per cent.
Ex-Reform UK chairman Zia Yusuf is confident that the inclusion of a Corbyn-led hard-left party will "munch" into Labour's support, potentially extending Farage's lead to double-digits across the nation.
After Find Out Now last night handed Reform UK a 14-point lead over Labour, Yusuf said: "Reform registered its largest ever poll lead today, with almost as much support as Labour and the Tories combined.
PA
|Reform UK leader Nigel Farage holding a phone displaying the number of Reform UK party members whilst speaking during the Reform UK East of England conference at Chelmsford City Racecourse
"And Corbyn’s Labour munching party hasn’t even launched properly yet. Let that sink in."
However, Corbyn swiped at Farage yesterday following the launch of Your Party.
He said: "Reform only offer a message of division and blame.
"All they do is say that every social issue in our society is, somehow or other, the fault of extremely vulnerable minorities.
PA | Zarah Sultana"They are a dangerously divisive force in our society."
He added: "Reform are a road to danger, not a road to any improvement in people's lives."
However, the former Leader of the Opposition, who then counted Starmer as a Shadow Cabinet colleague, also issued a stark warning to Labour MPs.
Corbyn said that Your Party offers an alternative to the "control freaks" in Southside, later accusing Starmer of "empty words" and "complicity in genocide" following the Prime Minister's intervention on Gaza.
PA | Jeremy Corbyn
However, a Labour source dismissed the threat posed by Corbyn, stating: "The electorate has twice given its verdict on a Jeremy Corbyn led party."
While Starmer led Labour to just its fourth landslide victory, Corbyn resigned as Leader of the Opposition after the party suffered its worst election result since 1935.
Despite national success being limited, Corbyn managed to mobilise a strong base of loyal supporters - taking Labour's membership from just 200,000 in 2010 to more than half-a-million in 2019.
The figure has since collapsed to just 392,000 under Starmer, with a deluge of defections still possible following the creation of a left-wing alternative to Labour.