Zack Polanski is now the most unpopular of the nation’s main party leaders as he fights to stay in the top post following his failure to win Sir Keir Starmer’s former constituency for the Greens. New polling by Opinium shows the Greens are the most likely to be seen as having an “antisemitism problem” (+18) with more than half of its supporters approving of a conference vote which declared it an “anti-Zionist” party. Mr Polanski now has a net popularity rating of -29, a seven point fall which comes as he insists he will continue to lead the controversy-ensnared Greens.Israel’s...