David Seymour doubts the dismissal of Te Whatu Ora's chair goes far enough.

Rob Campbell has been sacked by Health Minister Ayesha Verrall, for venting on social media about National's Three Waters policy.

But the Act Party leader is adding to some calls for Campbell to be removed as chair of the Environmental Protection Agency as well.

He told Kate Hawkesby the role is subject to the same Code of Conduct requirements for political neutrality.

Seymour says today is the day Environment Minister David Parker should sack Campbell as the chair of the EPA, for the same reasons he's gone from health.

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