New Zealand First MP Shane Jones is threatening to withhold Waitangi funding, over recent actions at the commemorations.

Protesters turned their backs on ACT leader David Seymour as he addressed the crowd, with some displaying messages around honouring Te Tiriti.

Some took his microphone off him, and others sang as he spoke.

Jones has since asked what the point of funding the Trust is - if it has not made Waitangi a more hospitable place.

Newstalk ZB senior political correspondent Barry Soper says there's been debate about misbehaviour on the Waitangi grounds every year.

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