Reform UK has regained its lead over Labour in a fresh poll that raises questions over the longevity of the so-called ‘Burnham bounce’.The new prime minister has been credited with ending the run that saw Nigel Farage boast his party had led in the polls for more than a year after two surveys put Labour on top while three had the party tied with Reform, days after Andy Burnham entered Downing Street.But a new YouGov poll puts Reform in front again, with 23 per cent vote share to Labour’s 22 per cent.Reform has overtaken Labour in a new poll (AFP/Getty)In a similar YouGov survey last week, Labour and Reform were both tied at 22 per cent. The result comes after a difficult few weeks for Mr Farage, who has struggled to explain a £5m gift from crypto-billionaire Christopher Harborne, which prompted a parliamentary sleaze probe. At the same time Labour’s Bev Craig won the Greater Manchester mayoralty election, trouncing Reform. But Dr Patrick English, YouGov’s head of elections and political data, suggested voters had yet to be won over by the new Labour government. He told The Telegraph there had certainly been a “positive response from the British public to Labour’s removal of Keir Starmer and replacement with Andy Burnham, who is currently the most positively rated party leader that we are measuring”.But he warned that even though Burnham leads the pollster’s favourability ratings “he is not hugely popular”, adding: “So I don’t think we should expect a massive surge in Labour support, and I would caution expectations in that regard because the British public still don’t think that the government is doing a brilliant job.”“They still don’t think they’re addressing their concerns around the cost of living and around immigration, and they’re going to want to see actual improvement and actual changes in their day-to-day lives before they start giving Labour more reward in the polls and more reward at the ballot box.”Before Mr Burnham became prime minister, Reform had led in more than 300 consecutive surveys since April 2025. But a Survation poll last Tuesday put Labour on top with 26 per cent, up one point, with Farage’s party on 24 per cent, down two points.That result followed a More in Common poll released on Monday which put Labour ahead with 28 per cent compared to Reform’s 24 per cent. Mr Farage is currently campaigning to win back his parliamentary seat in the Clacton by-election, after he dramatically resigned to trigger a vote.The move was in protest at what he claimed was his treatment over the investigation into a £5m donation from Mr Harborne. He is also facing questions over gifts and support he received from convicted money launderer George Cottrell.