Your Party was launched in July 2025 by Jeremy Corbyn and Zarah Sultana, and the early numbers were striking: more than 600,000 people registered their interest within days. That is the figure the party still cites, and it is a real one. The gap opened up underneath it. By the founding conference in November 2025, about 55,000 of those sign-ups had become paying members, and the polling that had made the project look formidable was already sliding: YouGov found 18 per cent of voters open to a Corbyn-led party in July 2025, 12 per cent by November, and actual voting-intention scores in the low single figures by the end of the year. In the same months the Green Party, under its new leader Zack Polanski, tripled its membership past 200,000 and won its first ever Westminster by-election. The left-of-Labour space Your Party was built to occupy is being taken by a rival that was already there.

Much of the damage was self-inflicted, and it started at the top. Sultana opened a paid membership system before the launch was fully agreed, and the dispute that followed spilled into public. In September 2025 she said she had instructed defamation lawyers over what she called "false and defamatory statements" about the portal; the next day Jamie Driscoll, Andrew Feinstein and Beth Winter, directors of the company set up to run the party's creation, published a letter saying they had "tried to mediate between Jeremy and Zarah for some weeks" and that one side had not responded to repeated requests for a meeting. A reconciliation followed, but the fault line held.

It hardened into a formal contest. In elections to the party's Central Executive Committee over February 2026, Corbyn's slate, "The Many," won 14 of the 24 seats; Sultana's "Grassroots Left" won seven, with three independents. On 8 March the new committee installed Jennifer Forbes as chair, the former MP Laura Smith as vice-chair and Corbyn as parliamentary leader, a role created for him. Corbyn's majority then moved against organised groups aligned with Sultana, including some linked to the Socialist Workers Party, on the grounds that they were trying to control the party through its branches. A party that had promised member-led democracy was, within months, expelling members over how they organised.

The strain showed worst in Scotland, where in April 2026 all twelve members of the interim Scottish executive resigned together and declared the party finished north of the border, citing a refusal by the UK leadership to grant them any real autonomy.

None of this has yet been tested at the ballot box in the party's own name. Corbyn holds Islington North on a majority of 7,247 and Sultana holds Coventry South on 10,201, but both were won in 2024, before Your Party existed, Corbyn as an independent and Sultana as Labour. The wider group of pro-Palestinian independents Corbyn sits with, the Independent Alliance formed in 2024, has not folded into the party, and its MPs remain formally independent. No one has yet been elected under the Your Party label.

Its bigger problem is that the causes it was founded on are being answered by the party it broke from. Sultana left Labour over the two-child benefit cap, which Labour scrapped in the November 2025 Budget. Your Party opposed arms sales to Israel and backed Palestinian statehood; the government recognised Palestine on 21 September 2025. On the issues that defined the split, the distance from Labour has narrowed.

What the party has not done is say what it is for beyond that. It commits to public ownership of energy, water, rail and mail and to redistributing wealth, but has published no wealth-tax rate, threshold or revenue figure, and no route to nationalisation, deferring the detail to the executive committee. On immigration, the issue over which some of its founders left Labour, it has published no position at all. Even on cooperation it now speaks the language of the smaller partner: Sultana has described the Greens as allies the left will have to work with, an implicit admission of which party is now setting the pace.

For all that, Your Party is not nothing: 55,000 paying members is a substantial base for a party a year old, and it has two sitting MPs. But it launched with more attention and more sign-ups than any new party of the British left in memory, and has spent its first year losing ground, to infighting, to Scotland's walkout, to Labour's policy shifts and to a Green Party growing faster in the same territory. Its recovery depends on two things it has not settled: who leads it, and what, beyond opposition to Labour, it is actually for.