Green party leader announces run in Holborn and St Pancras constituency in north London following the resignation of former PM Full report: Zack Polanski to stand in Keir Starmer seat as Green party candidate These are from Rob Ford , a politics professor and elections specialist, on what Zack Polanski being the Green party’s candidate means for the Holborn and St Pancras byelection. Big stakes now for both parties. Greens have chance to turn the tide on recent decline & show Polanski is a winner. As I said a couple of days ago, Polanski candidature may change how voters in the seat see contest. No longer just Green vs Lab - it is now “would you like the national leader of the Green party or a generic Lab backbencher as your local representative?” It is quite possible for Labour to los