Mujtaba Rahman is the head of Eurasia Group’s Europe practice. He posts at @Mij_Europe . British Prime Minister Keir Starmer has only four months to save his premiership. After the U.K. parliament’s return from Christmas recess, Starmer marked his first 18 months in Downing Street with a speech touting his Labour party’s efforts to ease the cost-of-living crisis. But behind the scenes, anxiety is growing that voters won’t feel any meaningful relief before the decisive regional and local