Greater Manchester Mayor Andy Burnham has cruised to victory in a high-stakes by-election in northern England, paving the way for him to challenge Prime Minister Keir Starmer for the leadership of the Labour Party and the United Kingdom.Burnham handily defeated his closest challenger, Robert Kenyon, the candidate for the anti-immigration Reform UK, in the seat of Makerfield, vote results showed early on Friday, securing the House of Commons seat he needs to mount a bid for the prime ministership.Recommended Stories list of 4 itemsend of listBurnham won 24,927 votes, beating Kenyon by more than 9,000 votes.Rebecca Shepherd of Restore Britain was a distant third, trailed by Michael Winstanley of the Conservative Party, Sarah Wakefield of the Green Party, and the Liberal Democrats’ Jake Austin.“Everyone knows that politics is not working,” Burnham said in his victory speech.“Everyone can feel that the country isn’t where it should be. Tonight could – just could – be the turning point. From here on, I will give everything that I have got to make it so, to ensure the name Makerfield is forever synonymous with bringing about the change this country needs.”Burnham’s victory is likely to either precipitate Starmer’s resignation or set off a leadership contest pitting the prime minister against the outgoing mayor and Wes Streeting, the former health secretary.Under the UK’s pol …