The Privileges Committee will meet with or without Te Pati Māori.
The party's refusing to front up for alleged threatening behaviour towards David Seymour during last year's Haka in the House.
Co-leaders Debbie Ngarewa-Packer and Rawiri Waititi —along with Hana-Rawhiti Maipi-Clarke— have all been separately summoned.
They say they haven't been allowed to appear together, at a time their lawyer can attend.
Constitutional Law Expert Graeme Edgeler told Mike Hosking the committee will meet regardless.
LISTEN ABOVE

Mike's Minute: Invented stories and the media
02:12

Rod Liddle: UK Correspondent on the UK's stance on the war in the Middle East, Strait of Hormuz
06:51

Dr Nikolas Stihl: Chair of the Stihl Advisory Board and Supervisory Board on the company's 100th anniversary
10:55