Supermajority Watch

A veto-proof supermajority changes what a legislature is. Where one party clears the veto-override threshold in both chambers, the governor's veto stops being a check — which matters most in the states where the governor belongs to the other party. This page tracks every override majority: who holds one, whose is on the line in the 2026 elections, and who is within striking distance of gaining one.

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Veto-Proof Legislatures
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Checking an Opposite-Party Governor
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At Risk in 2026
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Within Reach in 2026
Checking the Governor

Legislatures holding a veto-proof supermajority against a governor of the other party — the override power here is used, not theoretical.

At Risk of Losing It in November

Veto-proof today, but with a cushion small enough that 2026 could erase it. Sorted by the tightest chamber.

Within Reach of Gaining It

One party controls both chambers and is a handful of seats short — every shortfall chamber is on the 2026 ballot.

Every Chamber

Current seats vs. the veto-override threshold in all 50 states.

ChamberControlSeats / ThresholdCushionOverride Rule2026
How to read this page. Overriding a governor's veto generally requires the override threshold in both chambers, so a legislature only counts as veto-proof when the same party clears the bar in each. Thresholds vary by state — two-thirds is most common, some use three-fifths, and in a few states a simple majority of elected members can override, which makes any majority effectively veto-proof there. Nebraska's officially nonpartisan, unicameral legislature is counted by caucus alignment. Coalition-run chambers (Alaska) aren't assigned to a party. Seat counts reflect current composition including vacancies; cushions change with every special election.