Reform UK have slumped to their lowest performance in opinion polls in over 18 months as Nigel Farage’s by-election win fails to boost the party’s popularity.
A new voting intention poll from More in Common puts the party at 23 per cent – four points behind Andy Burnham’s Labour.
The dip marks Reform’s lowest vote share since January 2025, and comes after weeks of infighting within the party.
The latest figures will come as a major blow for the party, who topped the polls for more than a year until Mr Burnham became prime minister, giving the Labour Party a much-needed boost in the polls.
It comes amid increasing scrutiny over the party’s finances, which Mr Farage sought to put aside with his by-election win earlier this month.
UK director of More in Common Luke Tryl said: “The dip in Reform’s vote to their lowest since January 2025 is partially a result of fragmentation on the right and the inclusion of Restore.
“Labour have now been steady at 27 per cent for a month.”
Reform has been seeking to play down reports of fracturing at the heart of the party in recent weeks, after key ally Tim Montgomerie was suspended after he criticised home affairs spokesperson Zia Yusuf for not being a “team player”.
He has been openly critical of Mr Yusuf in recent weeks and even publicly suggested in a podcast that “Nigel has fallen out of love with Zia”.
A senior Reform source also said the party would “never engage in the Tory briefing wars and toxicity that goes with them”, adding: “The correct course of action has been taken. Disagreements should happen behind closed doors, not in the eye of the national media.”
The party is also facing serious questions over its donations, after Mr Farage resigned over the mounting scrutiny.
His decision to force a contest followed continued questions about a £5m donation he received from crypto billionaire Christopher Harborne and gifts from a convicted criminal, George Cottrell.
But within hours of the result in Clacton, the Parliamentary Commissioner for Standards confirmed its investigation has now resumed.
Its resumption means there is a possibility Mr Farage will have to face a second by-election within weeks if he is found to have breached parliamentary rules.
Under Commons rules, new MPs are required to register any gifts worth more than £300 they received in the previous 12 months, except where the gift “could not be reasonably thought by others” to relate to their political activities.
Mr Farage has repeatedly denied wrongdoing and said that he was not required to register the £5m “gift” because it was purely personal.