The gang saga could expose political hypocrisy to voters, with photos coming out of multiple parties meeting with gang members.

Labour's Kerrin Leoni resigned after footage emerged of her campaigning at a Mongrel Mob event, while Green and Te Pati Maori politicians have also had contact.

Photos have since surfaced of National MPs, including Chris Luxon, posing with gang members

Political Commentator Bryce Edwards told Andrew Dickens context matters as campaigning with gangs is very different from running into them.

He says Luxon said there was no room for nuance in the debate but is now finding there is, so there's integrity issues seen across the board.

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