The knives were out for Zack Polanski before the votes were even counted – and a convincing defeat to Labour in the Holborn and St Pancras by-election will only intensify the questions surrounding the Green Party leader. Polanski enjoyed a meteoric rise as Green leader after being elected a little over a year ago, with his brand of eco-populism – heavy on the populism – pulling up the party’s poll rating and sparking talk of being a genuine challenger to Labour or even a coalition partner after the next election. But just as fast as he rose, Polanski’s star has faded […]