Christopher Luxon has surprised many, including his National Party colleagues, with his commitment to offer voters a chance to revisit New Zealand’s electoral system. This promise, though unexpected, aligns with National’s history of pushing constitutional change. The circumstances surrounding Luxon’s pledge mirror those that led to the adoption of the mixed member proportional (MMP) system in 1993.
In 1978, National won an 11-seat parliamentary majority under the first-past-the-post (FPP) system despite receiving fewer votes than Labour. Two years later, Labour campaigned for an investigation into the electoral system after another election where National again won without the popular vote. Labour formed the Royal Commission on the Electoral System in 1984, but ignored its recommendations. By 1987, the issue had taken on life of its own, with a televised leaders' debate forcing Labour into a commitment to a referendum if it won office.
Labour’s deputy prime minister Geoffrey Palmer followed through on David Lange’s promise, setting the stage for National to claim a moral high ground in 1990. But National, having pledged to stage a binding referendum once in office, delayed the process. An indicative vote in 1992 revealed strong support for change, leading to the switch to MMP in 1993 with 53.9% of voters opting for the new system.
A nuclear option revisited
Forty years on, Luxon’s electoral reform pledge lacks the same level of scrutiny and debate. While the Royal Commission and select committee reports provided context for the shift to MMP, there is no comparable groundwork in 2026. Critics question whether Luxon is addressing a real problem or simply reacting to coalition tensions. The current government has functioned without collapse, passing budgets and advancing legislation.
Luxon’s frustration appears to center on managing a multi-party coalition. However, other MMP governments have managed such tensions without resorting to systemic reform. The New Zealand model, while imperfect, has endured for over three decades. Luxon, by contrast, offers no analysis of the flaws he seeks to fix.
Unclear terms of engagement
Luxon’s announcement left many details ambiguous. Will voters be offered a simple choice between MMP and FPP, or will other systems be included? Is a binding referendum planned, or might there be a longer, more complex process? No public education campaign has been announced, despite the complexity of the issue.
If FPP is the intended outcome, there is little evidence that voters would support a return to a system that allowed one party to govern despite lacking majority support. Between 1951 and 1996, governments were formed by parties with parliamentary majorities but not popular votes. Small shifts in voter turnout in marginal seats could have changed election results, as occurred in 1981.
In 1981, for instance, 154 voters in three marginal seats would have altered the election outcome. Third parties, though gaining support, rarely secured parliamentary representation under FPP. Social Credit, for example, won 20% of the vote in 1981 but gained just two seats.
The lack of clarity in Luxon’s policy proposal raises concerns about the process. Will voters be given the tools to understand a complex issue or asked to make a decision based on vague references to
The promise of electoral reform remains a political tool rather than a concrete solution. Without a clear problem, it is difficult to assess whether a referendum would serve the public or political interests.