Missouri Proposition A (2026): Map, Court Status & What It Does
What is Missouri Proposition A?
Proposition A is a ballot measure that will appear before Missouri voters on November 3, 2026. The measure asks voters whether to approve the Missouri First Map for future congressional elections. A YES vote would approve the Missouri First Map. A NO vote would not approve the Missouri First Map, meaning future elections would be conducted under the 2022 district lines.
CURRENT STATUS AS OF SEPTEMBER 28, 2026: Proposition A is certified for the November 3 ballot. On September 25, the U.S. Supreme Court blocked federal court orders requiring Missouri to use the Missouri First Map. Missouri will use the 2022 congressional districts for the November election under the Court’s current orders. Voters will decide whether to approve the Missouri First Map for future elections.
Quick facts
Ballot measure: Proposition A
Liberty Alliance USA recommendation: Vote YES on Proposition A
Election date: November 3, 2026
What a YES vote does: Approves the Missouri First Map
What a NO vote does: Rejects the Missouri First Map and keeps the 2022 congressional map
Map for the November election: The 2022 congressional map.
Litigation status: The U.S. Supreme Court’s September 25 order keeps the 2022 map in place for November.
Expected balance under the Missouri First Map: Seven Republican-leaning districts and one Democratic-leaning district
August primary: Conducted under the Missouri First Map, although the Court later ruled that House Bill 1 never took effect
Campaign opposing the map: People Not Politicians, a liberal PAC
What are Missouri voters deciding with Proposition A?
Proposition A asks voters whether House Bill 1 and the Missouri First Map should take effect.
A YES vote approves House Bill 1 and the Missouri First Map for future congressional elections. The map creates seven Republican-leaning districts and one Democratic-leaning district.
A NO vote rejects House Bill 1 and keeps the 2022 map in place, protecting Democrat incumbents in Kansas City and St. Louis.
Proposition A will not change the congressional districts used in the November 3 election. Missouri election officials will conduct the election under the 2022 map.
The official fiscal summary estimates no costs or savings for state or local governments.
Why Liberty Alliance USA recommends a YES vote
Missouri is a conservative state. Our congressional map should reflect our values.
In 2024, President Donald Trump, Governor Mike Kehoe, and Senator Josh Hawley each won by double digits.
The 2022 congressional map unfairly protects Democrat incumbents in Kansas City and St. Louis.
The Missouri First Map maintains the solidly Democratic 1st District in St. Louis. It redraws the Kansas City-based 5th District so conservative voters across western and central Missouri can compete for the seat.
Inside Elections’ analysis puts the 5th District at D+23 under the 2022 map and R+17 under the Missouri First Map, using its Baseline measure of district partisanship. The proposed map has seven Republican-leaning districts and one Democratic-leaning district.
What does the Missouri First Map change?
Missouri still has eight congressional districts. The largest changes are in and around Kansas City.
The 2022 map places most of Kansas City in the heavily Democratic 5th District. The Missouri First Map distributes Kansas City voters among the 4th, 5th, and 6th districts. The redrawn 5th adds Lafayette, Johnson, and Pettis counties and extends east through central Missouri.
The St. Louis-based 1st District remains solidly Democratic. The 5th District moves from D+23 to R+17, while the other six districts remain Republican-leaning. The result is seven Republican-leaning districts and one Democratic-leaning district.
Kansas City continues to have representation in Congress. Proposition A changes how the city’s voters are grouped with surrounding communities.
Missouri publishes the official statewide map, individual district maps, and GIS files online.
What did the Missouri Supreme Court decide?
On September 3, the Missouri Supreme Court reversed the lower court and ordered Proposition A onto the November ballot.
The Court ruled that Missouri’s referendum power applies to House Bill 1. Article III, Section 49 of the Missouri Constitution allows voters to refer any act of the General Assembly unless a stated exception applies. The Court found no exception for congressional redistricting.
Because the referendum petition was legal, sufficient, and filed on time, House Bill 1 was suspended before its scheduled effective date.
“HB 1 did not go into effect and will not go into effect unless and until approved by the voters.”
The Court ordered Secretary of State Denny Hoskins to certify the petition and place Proposition A on the ballot. It also directed Missouri to use the 2022 congressional districts for the November election and barred the state from using the Missouri First Map in future elections unless voters approve it.
What did the US Supreme Court decide?
On September 25, the U.S. Supreme Court blocked federal court orders requiring Missouri to use the Missouri First Map in November. The Court left the 2022 districts in place and directed the lower federal courts to allow their use for this election.
Proposition A remains on the November ballot. A YES vote would approve the Missouri First Map for future elections.
Who is trying to defeat the Missouri First Map?
People Not Politicians is the liberal PAC behind the referendum campaign.
The group is asking Missourians to vote NO on Proposition A. A NO vote would keep the 2022 map and preserve the Kansas City-based 5th District as a heavily Democratic seat.
Frequently asked questions
Is the Missouri First Map currently in effect?
No. The Missouri Supreme Court ruled that House Bill 1 never took effect because the referendum petition suspended it before its scheduled effective date.
Is Proposition A on the November ballot?
Yes. Proposition A is certified for the November 3 ballot.
Which congressional map will Missouri use in November?
Missouri will use the 2022 congressional map under the U.S. Supreme Court’s current orders. On September 25, the Court blocked the renewed effort to require the Missouri First Map for this election.
What does a YES vote on Proposition A mean?
A YES vote approves the Missouri First Map for future elections.
What does a NO vote on Proposition A mean?
A NO vote rejects the Missouri First Map and keeps the 2022 congressional map in place.
Didn’t Missouri already hold a primary under the Missouri First Map?
Yes. Missouri conducted the August 4 congressional primary under the Missouri First Map. The Missouri Supreme Court later ruled that House Bill 1 never took effect and ordered the state to use the 2022 districts in November.
Does the Missouri First Map guarantee seven Republican members of Congress?
No. It creates seven Republican-leaning districts and one Democratic-leaning district. Voters decide every race.
Does Kansas City lose representation under the Missouri First Map?
No. Kansas City voters remain represented in Congress.
Does an appeal automatically stop the Missouri Supreme Court’s ruling?
No. An appeal requires a separate court order to pause a ruling. Federal courts subsequently ordered Missouri to use the Missouri First Map, but the U.S. Supreme Court stayed those orders. Its September 25 decision keeps the 2022 map in place for November.
When is Missouri’s general election?
The general election is Tuesday, November 3, 2026. Polls are open from 6 a.m. to 7 p.m. Voters in line at 7 p.m. may cast a ballot.
The choice for Missouri voters
Missouri is a conservative state. Its congressional map should stop protecting a second deep-blue seat.
The courts have put House Bill 1 in the hands of the voters. Now Missourians get the final say.
Vote YES on the Missouri First Map.
Primary sources
- September 3 Missouri Supreme Court opinion in von Glahn v. Hoskins
- Attorney General Hanaway’s statement on seeking U.S. Supreme Court relief
- House Bill 1 and legislative actions
- Secretary of State referendum petition records and official ballot language
- Official Missouri congressional maps and GIS data
- Governor Kehoe signs the Missouri First Map
- Missouri 2024 General Election results
- September 25 U.S. Supreme Court opinion in People Not Politicians v. Onder