The architect of the Treaty Principles Bill is still hopeful the Prime Minister could support it.

David Seymour confirms Cabinet discussed his Bill today - and agreed its broad outline before it goes to Parliament's drafters.

He says it'll change to acknowledge the rights of hapu and iwi at the time of the Treaty.

Chris Luxon says he won't support it past first reading, but Seymour's optimistic that could change.

"You see the exact wording, you see other people's reactions, you see it's actually a force for good - and maybe you take a different view."

Luxon said today that ACT and National don't agree on this.

"We found a compromise where both parties didn't get what they wanted, but we have to honour our coalition commitments - and that's what we're doing here."

LISTEN ABOVE

• Watch: ‘We have to honour our agreements’: PM questioned on Treaty Principles Bill
• Seymour’s Treaty Principles Bill to be considered by Cabinet today
• Watch live: Question Time as Seymour fires back over Treaty Principles Bill
• Christopher Luxon faces questions on Treaty Principle Bill
• Analysing how much New Zealand is upset by the Treaty Principles Bill
• What is the Treaty Principles Bill? ACT leader David Seymour explains the controversial reading