Progressive Greens win closely watched election in one-time Labour stronghold, while right-wing Reform comes second. A candidate for the United Kingdom’s left-wing Green Party has comfortably won a closely-watched election for a vacant parliamentary seat, delivering an embarrassing defeat for Prime Minister Keir Starmer’s Labour Party in one of its former strongholds. Results announced Friday showed the Greens’ Hannah Spencer, a 34-year-old councillor and plumber, had won 40.7 percent of the vote in the by-election in Gorton and Denton, a constituency in Greater Manchester that has been considered a secure Labour seat for almost a century. In an outcome that analysts said pointed to the fracturing of the UK’s traditional two-party politics, the hard-right candidate for the populist, ant...