Mr Gallagher said it was likely he would step down as chair of City Vision if he secured the President's role.
He would not set out what he believed the priorities were in the role, saying it was something he'd be addressing with party members. However, he agreed fundraising was an important factor.
"It's an important role, working with caucus and Andrew Little."
Mr Haworth did not want to comment yesterday, saying it was an internal process. "All I will say is there are two strong candidates and the members have a decision to make."
Mr Gallagher has a substantial amount of experience in organising campaigns - including managing David Shearer's by-election campaign in Mt Albert in 2009, other general election Labour campaigns and local body candidates under the left leaning City Vision banner in Auckland.
Mr Haworth is well regarded by MPs and earned respect for his role overseeing the policy platform the Labour Party developed a few years ago. A professor in human resources development at Auckland University, he migrated to New Zealand from Britain in 1988. He joined the Labour Party in the UK in the 1960s and signed up with the New Zealand version when he arrived: "it was after Rogernomics."