There are deep divisions emerging in the Labour Party over the Marriage Equality Bill.
Labour MP Sua William Sio has challenged the bill, saying that if it is not withdrawn it could cost Labour the next election.
Mr Sio says the bill could cost Auckland up to 30,000 votes in the South Auckland heartland where the conservative religious Pacific Island community are opposed to the idea of gay marriage.
His comments come as a rebellion of sorts within his party, but Labour leader David Shearer says that as the bill will be a conscience vote Mr Sio will be free to vote as he chooses.
Watch the video for Patrick Gower’s wrap on Firstline