ASHTON-IN-MAKERFIELD, United Kingdom: Counting was under way late Thursday in a historic UK by-election which could determine embattled Prime Minister Keir Starmer’s future, as a Labour rival eyeing a leadership bid vies for a parliamentary seat. Greater Manchester mayor Andy Burnham, a veteran of the ruling center-left Labour party, is seeking to win the contest for the Makerfield constituency in northwestern England. If successful, he can then launch his widely anticipated attempt to oust Starmer as party leader and snatch the keys to Downing Street.

Britain holds a crucial by-election today. The vote could trigger a leadership challenge against Labour's Keir Starmer. Andy Burnham, a popular mayor, aims to win the seat to run…

LONDON, June 17 — Britain holds a special vote on Thursday that is expected to set in motion an attempt to oust Labour leader Keir Starmer as prime minister.Below is everything...