Election 2026: The political careers on the line this week

Several sitting MPs could lose Parliament because their party may win electorates while gaining too few list seats to return everyone. National is especially vulnerable: the model predicts it will lose about 10 points of party support but retain some electorates. That combination leaves little room for list candidates.

Nancy Lu, Gerry Brownlee and Nicola Willis are running only on the list, ranked 15th, ninth and second. Chris Bishop could lose Hutt South after defending a 1,332-vote majority. Paul Goldsmith must defeat Act leader David Seymour in Epsom, while Melissa Lee is projected to lose Mt Albert. Carlos Cheung and Vanessa Weenink could lose their electorates to Labour.

Labour MPs also face uncertainty. Ayesha Verrall and Willow-Jean Prime may lose close electorate races but return as list MPs. Priyanca Radhakrishnan and Shannan Halbert may miss out entirely if they lose their electorates, because Labour’s projected list places may be limited.

New Zealand’s MMP, or mixed-member proportional, system gives voters two votes. One chooses a local electorate representative. The other chooses a political party. Electorate MPs win their individual contests, while list MPs are selected from party lists to make each party’s overall representation broadly match its party-vote share.

For example, a candidate such as Chris Bishop can enter through Hutt South if he wins that electorate. A candidate such as Nancy Lu can enter only through National’s list, provided National wins enough party votes to receive a seat at her ranking. A party’s electorate victories count toward its total entitlement, so winning more electorates can leave fewer list places available.

The article’s projections show why the distinction matters. Labour is expected to win 23 electorates and nine list seats. National may retain electorates but have no available list places, putting several list candidates and losing electorate candidates at risk.

The article gives a clear central projection for Labour but not a full numerical seat breakdown for National. Labour is expected to win 23 electorates, which would be seven more than at the last election. The model then gives Labour nine list spots.

That calculation explains why some Labour MPs remain vulnerable despite the party growing its caucus. Willie Jackson and Megan Woods are list-only candidates who would use two of those nine places. Other MPs, including Ingrid Leary, Phil Twyford and Arena Williams, are expected to win electorates, reducing the number of list places left for higher-ranked candidates who lose their local races.

For National, the article predicts a fall of about 10 points in party support while the party retains some electorates. It says this could leave no list seats available, but it does not state how many electorates National would win. Therefore, a precise National electorate-list split cannot be supplied from the article.

Under MMP, a party’s electorate victories are included in its overall share of Parliament. List seats then fill out the party’s entitlement based largely on its party vote. A party that wins many electorates may therefore need fewer list MPs to reach its total allocation.

Labour is the clearest example. The model projects 23 Labour electorate wins and nine list spots. MPs such as Ingrid Leary, Phil Twyford and Arena Williams are expected to win their electorates, which uses seats without drawing on the list. That leaves fewer places for candidates who lose local contests.

The effect can decide careers. Priyanca Radhakrishnan and Shannan Halbert are ranked 18th and 19th, but neither is currently projected to win an electorate. If Labour’s electorate gains and limited list allocation leave them below the cutoff, they will not return. Small race changes could alter that result.

The 5% party-vote threshold is the minimum share generally required for a party to receive representation through New Zealand’s party list. A party that does not reach that mark, and does not qualify through an electorate victory, normally receives no list seats. This prevents very small parties from automatically entering Parliament.

The article uses Opportunity to show the consequence. If Opportunity fails to reach 5%, it would not take list seats. Those seats would not simply disappear; the available allocation would be recalculated among parties that qualify. That could create extra places for National, Labour, Act, New Zealand First or other successful parties.

This matters because several candidates sit near uncertain cutoffs. National’s model may leave no list seats, but Opportunity’s failure could free some. The article therefore warns that a small change in minor-party support could bring MPs back who currently appear likely to lose Parliament.

An overhang is an MMP effect in which a party wins more electorate seats than its share of the party vote would normally provide. The electorate winners keep their seats. Parliament becomes larger than its standard total so the extra victories can be represented.

The article mentions National’s potential to create an overhang as one reason its MPs are under scrutiny. In practical terms, an overhang can change the balance of Parliament by adding seats beyond the usual allocation. It is separate from the question of whether a party has list places available, although both depend on the relationship between electorate results and party votes.

The article does not give a numerical National overhang forecast. It says election outcomes remain uncertain and that losing or winning particular electorates could change Parliament’s composition. Thus, an overhang could alter the final seat totals and the number of MPs entering beyond the central model.

MMP links local victories, party support and list allocation. That makes the system sensitive to small changes. A candidate winning or losing one close electorate can change a party’s electorate total. A slight shift in party votes can also change how many list seats each qualifying party receives.

The article gives several examples. Chris Bishop is defending Hutt South by 1,332 votes, while Ayesha Verrall, Willow-Jean Prime and Vanushi Walters face important electorate contests. If Opportunity misses 5%, other parties may receive more list seats. The article also says right-wing vote-splitting may lift Act and New Zealand First.

These effects can change individual careers quickly. A Labour candidate who loses locally may return through the list, while another may miss out because colleagues win electorates. National could lose electorate seats and create more list opportunities, or retain them and leave list candidates outside Parliament. The final result could therefore differ sharply from the central projection.