Zack Polanski ’s popularity ratings have taken a major hit days before crucial local elections following a row with the chief of the Metropolitan Police over a post he shared about the Golders Green stabbings . New polling has shown the Green Party leader’s net approval rating has fallen 14 points in the wake of being publicly criticised by Sir Mark Rowley last week. In a rare intervention, Sir Mark rebuked Mr Polanski for sharing an “inaccurate” post on X (formerly Twitter) that accused officers detaining the Golders Green attack suspect of “repeatedly and violently kicking a mentally ill man in the head” when he was already incapacitated after being tasered . Mr Polanski has faced criticism from within his own party, as well as from prime minister Sir Keir Starmer, who branded him “disgraceful” and “not fit to lead any political party”.…