Missouri ballot measure · November 3, 2026

Missouri Proposition A, explained

Referendum on the 2025 congressional district map. A ballot measure is a yes-or-no question put directly to voters — no candidate is involved, and the wording on the ballot is the wording that becomes law. This page shows that wording first, then what it actually changes.

The official wording

Do the people of the state of Missouri approve the act of the General Assembly entitled "House Bill No. 1 (2025 Second Extraordinary Session)," which repeals Missouri's existing congressional plan, and replaces it with new congressional boundaries that keep more counties intact? State and local governmental entities estimate no costs or savings.

This is what appears on the ballot. Everything below explains it.

What it actually means

Asks voters whether to keep the congressional map the Legislature passed in a 2025 special session. A YES vote approves that map; a NO vote rejects it and keeps the districts drawn in 2022. Whatever the result, the November 2026 congressional elections use the 2022 districts under a Missouri Supreme Court order.

If you vote YES

House Bill 1 would take effect 30 days after the election, replacing the 2022 congressional districts for future elections.
The new map divides Kansas City among multiple districts; analysts cited by Ballotpedia rate seven of eight districts as strongly Republican, compared with six under the 2022 map.
The Governor's office says the map splits fewer counties and municipalities than the current one and keeps every current member of Congress in their district.

If you vote NO

House Bill 1 would be rejected, and the congressional districts enacted in 2022, with Kansas City mostly in the 5th District, would stay in place.
Under the 2022 map, the delegation has been six Republicans and two Democrats since 2013.

The numbers that matter

Fiscal impact: No costs or savings
Map used for November 2026 election: 2022 districts
Congressional districts: 8

Why supporters say YES

The Missouri First Map best represents Missourians, whose values are closer to each other than to the congressional representation of states like New York, California and Illinois; it splits fewer counties and municipalities.
— Governor Mike Kehoe (the Put Missouri First committee campaigns for Yes)
The new map is expected to help elect an additional Republican to Congress in 2026.
— President Donald Trump

Why opponents say NO

The mid-decade redraw was advanced at President Trump's demand to tilt the midterm elections and protect a narrow Republican House majority.
— U.S. House Minority Leader Hakeem Jeffries (the People Not Politicians committee campaigns for No)
Republicans are trying to redraw districts because they fear losing elections; Missourians should choose their maps.
— Ken Martin, chair of the Democratic National Committee

What’s genuinely uncertain

On September 3, 2026 the Missouri Supreme Court unanimously ruled the referendum valid, held that House Bill 1 never took effect, and ordered the 2022 map used for the November 2026 election; the U.S. Supreme Court declined to block that ruling. The August primary was held under the 2025 map, and its winners remain on the ballot.
A federal case by U.S. Rep. Bob Onder and state Sen. Rick Brattin was set for argument at the 8th Circuit on September 17, 2026; legal experts quoted by Missouri Independent see little chance it changes the map used in November, and the Attorney General said no path remained as of September 10.
This is the first time since 1922 that Missouri voters will vote on a congressional plan.
Put Missouri First reported about $3.1 million and People Not Politicians about $7.2 million in contributions through June 30, 2026.

The bottom line

A map its backers say keeps counties whole and better reflects Missouri's politics, against a mid-decade redraw that opponents say splits Kansas City's district to favour one party.

One neutral sentence describing the tradeoff — not a recommendation.

Sources:sos.mo.gov missouriindependent.com missouriindependent.com governor.mo.gov ballotpedia.org

Checking it against the official text

The Missouri Secretary of State publishes the certified measures and, in most states, an official voter guide with fiscal notes. That is the authoritative version. Everything here is an explanation of it, not a substitute for it.

Confirm this with the official source

Your ballot is determined by your election authority, not by us. Verify your registration, precinct, and sample ballot at Missouri Secretary of State.

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