British Prime Minister Keir Starmer faces potential leadership challenge from newly-elected Andy Burnham

Andy Burnham has officially won his special election and regained a seat in Parliament, setting him up to challenge the deeply unpopular Keir Starmer as the leader of the Labour party and as prime minister.Burnham, currently the mayor of Greater Manchester in northwest England, won a seat in Makerfield and came away with 55% of the vote in a field of more than a dozen candidates, according to The Associated Press. The runner-up was Rob Kenyon of Reform UK, a right-wing populist party, who receiv