Hone Harawira might disrupt parliament's swearing in ceremony on Tuesday.
The Mana Party leader is still considering how he'll respond when he's called on to swear allegiance to the Queen - and he's been in trouble before.
After winning the Te Tai Tokerau by-election earlier this year he made up his own oath and swore allegiance to the Treaty of Waitangi.
Speaker Lockwood Smith ordered him to leave the debating chamber, and he came back the following week to do it properly.
"I'm not sure how I'll respond when I'm called upon to give the oath," he says.
"But rest assured I will pledge allegiance to the things that matter."
The swearing in ceremony begins at 11am, conducted by Clerk of Parliament Mary Harris.
Dr Smith will be elected Speaker for a second term after MPs have been sworn in.
NZN