Sponsors
The bill aims to modernize House size and voting procedures to increase predictability, voter choice, and administrative clarity, but it also risks shifting political power among States, imposing significant implementation and fiscal costs, complicating minority representation, and inviting legal and administrative challenges.
All Americans and state governments gain a clear, uniform apportionment rule (one Representative per 500,000 people) that reduces ambiguity about how House seats will be allocated and gives states predictable guidance ahead of each decennial census.
States and voters can use fewer, larger multi-member districts, which simplifies administration (fewer separate district plans) and lets voters in each district elect multiple Representatives, potentially increasing geographic representation and voter choice.
Voters in States that adopt multi-member districts can cast ranked ballots, which can provide more expressive choices, reduce wasted votes, and produce more proportional outcomes in multi-seat races while standardized ranking limits and tie/audit rules increase transparency.
Some States and their residents could gain or lose Representatives (and related Electoral College influence) under the fixed 1-per-500,000 rule, shifting political power and altering voters' influence in Congress and presidential elections.
Tying apportionment to a fixed 500,000 divisor risks producing a much larger or smaller House than today, generating substantial new costs and logistical challenges (staffing, facilities, pay) that would fall on taxpayers and federal budgets.
Multi-member districts and the new voting methods could weaken geographically concentrated minority voting power, advantage statewide or regional parties and incumbents, and make it harder for challengers, reducing electoral competitiveness for affected communities.
Based on analysis of 6 sections of legislative text.
Introduced June 25, 2025 by Sean Casten · Last progress June 25, 2025
Changes how the size of the U.S. House is set by allocating one Representative for every 500,000 people counted in each decennial census, and repeals older fixed-size rules. Gives States the option to elect some or all Representatives from multi-member districts with equal population and permits those States to use ranked-choice voting with a specific uniform tabulation method. Creates a temporary federal commission to study and recommend changes if the new apportionment formula would change the House total by ±15% versus the previous census, and authorizes necessary funds for House space and operations that result from these changes. These reforms take effect for the first decennial census after the law is enacted (with the commission provisions beginning at the subsequent decennial census) and include detailed requirements for ballot design, vote counting, and commission membership, reporting, and powers.