Te Whatu Ora chair Rob Campbell, is under fire for comments he made online about the National Party's Three Waters policy.
Directors of crown entities are supposed to remain politically impartial, and Prime Minister Chris Hipkins says the comments were "inappropriate", and well outside the code of conduct.
Len Cook has worked in the public service for more than two decades as a government statistician in New Zealand and the United Kingdom, and says Rob Campbell shouldn't be jeopardising his ability to have good faith relationships with the opposition.
Cook spoke to Corin Dann.
