LONDON – The trajectory of Britain’s governing Labour Party shifted dramatically Wednesday, as senior cabinet minister Darren Jones announced he would not enter the upcoming leadership contest, clearing a major path for Andy Burnham to ascend to the office of prime minister without any challenger. The development comes as outgoing Prime Minister Keir Starmer, who revealed his plan to step down earlier this week, wraps up his abbreviated two-year tenure marked by domestic stumbles and steady foreign policy performance.