National is demanding answers after reports Cabinet Minister Kris Faafoi intervened in an immigration case to help a friend.
Newshub says it has seen texts and Facebook messages showing Mr Faafoi told Opshop band member Jason Kerrison he'd talk to people after Mr Kerrison's family had a partnership visa applicaton for his father-in-law declined.
It says Mr Faafoi told Mr Kerrison he would speak to people who could "speed things up" but that he couldn't put anything in writing.
Opposition leader Simon Bridges speaks to Corin Dann.