A political commentator says he doubts an incorrect email sent by the Council of Trade Unions was a genuine mistake

The CTU's email sent on Sunday night incorrectly claimed National would remove policies like 10 days sick leave and the Winter Energy Payment.

It has now clarified it meant to say they are things National has opposed in the past.

Commentator Peter Dunne says the CTU economist previously gave economic advice to Grant Robertson.

He says he'd know what was supported by whom.
He says the fact he got so much so wrong suggests either he's not up to his job, or it's a deliberate attempt to deceive.