The Senate Joint Resolution No. 1, proposed by Zaffirini, seeks to amend the Texas Constitution by establishing the Texas Redistricting Commission, which will be responsible for redistricting the United States House of Representatives and the Texas Legislature. The resolution outlines that the commission will have the legislative authority to adopt redistricting plans, and no changes to the districts for these legislative bodies can occur outside of this framework. The resolution mandates that the Texas Legislature will create laws governing the commission's composition and operations. The amendment is set to take effect on January 1, 2030, at which point the existing Legislative Redistricting Board will be abolished.

Additionally, the resolution amends Article V of the Texas Constitution regarding judicial districts, ensuring that the Texas Redistricting Commission will also be involved in the reapportionment of judicial districts if the Judicial Districts Board fails to do so after a federal census. The proposed amendment will be presented to voters in an election scheduled for November 4, 2025, allowing them to decide on the establishment of the Texas Redistricting Commission.