The Prime Minister-elect's leaving the door open to revealing details of a coalition deal.

Arrangements in 2017 weren't publicly released, because the Chief Ombudsman ruled details couldn't be requested under the OIA- because it came within Jacinda Ardern's capacity as Labour leader.

ACT's David Seymour is in coalition talks with National and says he'd be happy for his promises to be made public.

ZB political editor Jason Walls says Seymour is quite transparent as a politician- and he'd want to see which of ACT's proposals made it through.

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