The prime minister has mocked Zack Polanski’s party ahead of a by-election where the Greens have a good chance. John Rentoul looks at what their policies actually are K eir Starmer deployed a prepared soundbite against the Green Party in Prime Minister’s Questions last week, accusing them of being “ high on drugs, soft on Putin ”. The phrase is an echo of a slogan originally used by Labour against the Liberal Democrats. In the Littleborough and Saddleworth by-election in 1995, the Labour