Missouri Voters Will Decide Amendment 6 and Proposition A
The November 2026 general election will feature ballot measures regarding congressional maps and initiative laws.
Updated on Oct. 6, 2026 in Elections

Live Poll
Should it require 80% of lawmakers to change laws approved by voters through initiative petitions?
Missouri voters will head to the polls in November 2026 to cast ballots on Amendment 6 and Proposition A. These measures address the state's congressional district boundaries and the initiative petition process.
Why it matters
The measures address potential changes to legislative power and congressional representation following U.S. Supreme Court rulings on race-based districts. Proponents of Amendment 6 seek to ensure bipartisan support is required for future changes to voter-approved policies.
Amendment 6 establishes an 80% legislative approval threshold to modify voter-approved initiative petition laws. This requirement aims to prevent unilateral changes to policy without broad bipartisan support until the next census cycle.
The players
U.S. Supreme Court
This is the highest federal court in the United States, which recently ruled on the constitutionality of race-based redistricting.
The details
Proposition A offers voters a choice between the 2022 congressional map and a new 2025 plan, which would repeal the existing arrangement for the state's districts. Meanwhile, Republicans are reviewing Congressional District 1, a majority-minority area, in response to U.S. Supreme Court decisions declaring certain race-based districts unconstitutional.
Timeline
The current congressional district boundaries were enacted in 2022.
The proposed Missouri First congressional map was created in 2025.
Early voting in Missouri begins on October 20, 2026.
The general election and votes on Amendment 6 and Proposition A occur in November 2026.
Political Context
Legislative efforts in Jefferson City to redraw the map are a response to the U.S. Supreme Court ruling on race-based districts. The opposition party may argue that these efforts seek to minimize minority representation, potentially leading to further legal challenges regardless of the vote.
Voters will directly influence the state's congressional representation and the ease with which future laws can be modified by the legislature. These decisions will determine the boundaries of the district in St. Louis and set the threshold for future citizen-led initiatives.
The takeaway
Voters should review the specific differences between the 2022 and 2025 congressional maps before casting their ballots in November. Understanding the 80% threshold requirement is also critical for assessing the long-term impact on the initiative petition process in Missouri.
Further reading
For more on upcoming statewide contests, visit Missouri Elections.
Source note: This article includes information reported by Wgem.
Live Poll
Should it require 80% of lawmakers to change laws approved by voters through initiative petitions?










