Most voters remain unconvinced a new leader would help boost National or Labour's election chances, although support for a switch-up has grown over the past year.

With Opportunity on the rise, new polling from RNZ shows the party's supporters are far more keen on a Labour-led government than a National-led one.

With Opportunity on the rise, new polling from RNZ shows the party's supporters are far more keen on a Labour-led government than a National-led one.

Analysis: National appears to be baked in as a party of 30 or below with at least eight reputable polls this year, including the recent RNZ-Reid Research, having the party slump…

National dropped to 28.7%, its weakest result since November 2021.

Most voters remain unconvinced a new leader would help boost National or Labour's election chances, although support for a switch-up has grown over the past year.

More than half of those surveyed in the latest RNZ-Reid Research poll could be persuaded to vote for a different party, and it is Opportunity which could benefit most.