Rule-Outs Dominate New Zealand’s 2026 MMP Campaign

National Party leader Christopher Luxon publicly dismissed the prospect of working with the Opportunity Party in July, saying, “I mean, you know, we don’t want to do business with parties that want to increase taxes.” Hours later his office issued a formal statement confirming the comment as an official rule-out. Since then National has ruled out Te Pati Maori, Labour, the Greens and Opportunity, while Labour has ruled out NZ First and Act. The election is scheduled for November 7, and parties continue to announce further rule-ins and rule-outs as the campaign progresses.

The Spinoff

Under New Zealand’s mixed-member proportional (MMP) system, coalition building has traditionally involved compromise. Past minority governments—John Key’s 2008 administration (supported by United Future’s Peter Dunne and Maori Party’s Hone Harawira) and Helen Clark’s coalition with Jim Anderton’s Progressive Party—illustrated cross-party cooperation. Commentators note that other proportional democracies such as Denmark, Ireland, Germany, the Netherlands and Switzerland regularly form diverse coalitions, contrasting with the current “rule-out” focus that they argue narrows voter choice.

The Spinoff

Luxon’s office framed the rule-out as a principled stance against tax increases, reinforcing the party’s fiscal narrative. Labour has not issued a comparable rule-out list but has faced pressure from local figures such as Auckland councillor Wayne Brown, who urges the party to keep coalition options open.

The Spinoff

• “I mean, you know, we don’t want to do business with parties that want to increase taxes,” — Christopher Luxon

The Spinoff

These dynamics highlight a shift from collaborative coalition-building toward a strategic elimination game, raising questions about how the rule-out trend may affect voter agency and the spirit of New Zealand’s proportional representation system.

The Spinoff