An Act candidate touted as a future leader has declared the party all but dead and represented by an "economically ignorant" John Banks who wants to "suck up" to National.
Stephen Whittington, 25, ran in Wellington Central and was seventh on the party list. Along with number five on the list, David Seymour, he was regarded as a future star.
On his Facebook page Mr Whittington called Mr Banks "economically ignorant and interventionist", in response to the Epsom MP's comments opening the door to Conservative Party leader Colin Craig.
He later said he believed Mr Banks was against asset sales, but Mr Banks said he supported them.
Mr Whittington said Act's liberal flame was dying.