ACT leader David Seymour maintains fees-free tertiary education is on the scrap heap if his party gets sway after October's election.
It comes after National this week reserved its position on the policy, saying it won't abolish the promise despite campaigning for that in 2020.
Seymour says this is about taking a principled position.
LISTEN ABOVE

Chris Hipkins: Labour leader on the party unveiling its new SolarSaver package ahead of the election
05:14

Enda Brady: UK correspondent speaks ahead of Trump appearance at NATO summit
03:54

Hamish McKay: The Country spokesperson on the impacts of the rain in Kaikōura
03:25