The National Party is accusing the government of more conflict of interest issues, over contracts that went to an ad agency run by the partner of Associate Health Minister Peeni Henare.
Henare insists he's always been upfront about his relationship with Skye Kimura, the chief executive of the agency Tatou, which did the ads.
He's confident that that everything has been managed according to the rulebook.
National Party public service spokesperson Simeon Brown isn't so sure.
Simeon Brown spoke to Corin Dann.