Zack Polanski has said he would not have voted for a motion passed by Green Party members declaring Zionism a form of racism. The Green Party leader told BBC Breakfast the motion was "imperfect" and he would have voted for an amended version. Polanski is facing further questions over his leadership, after he finished second behind Labour in the Holborn and St Pancras by-election. For the latest news download the BBC News app or visit BBC.com/news