Winston Peters could be the one benefiting most from Labour and National's coalition squabbles.

In last night's Leaders Debate, Labour's Chris Hipkins dug into National's Chris Luxon over his plans to work with New Zealand First, if needed.

Newstalk ZB Editor Jason Walls says the more Peters is discussed, the more his vote share will increase.

He says this could leak votes from National and Act, who need to step up.

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