Andy Burnham has been confirmed as Labour’s candidate for the Makerfield by-election, setting the stage for a closely watched contest with implications far beyond the constituency. Labour’s ruling National Executive Committee is understood to have shortlisted only the Greater Manchester mayor, removing the need for a vote by local party members. That decision tees up a battle between Mr Burnham and Reform UK’s Robert Kenyon, a local plumber who fought the seat for the party in 2024. Mr Burnham has presented his candidacy as…