Judge Grants Partial Summary Judgment in Texas Anti-Voter Law; Trial Concludes on Remaining Provisions

In August, a federal court granted partial summary judgment in favor of civil rights groups who filed a lawsuit against Senate Bill 1 (SB 1), a Texas law that has disenfranchised voters. Senate Bill 1 requires mail voters to provide an ID number that matches the number contained in their voter file, which is maintained in a Texas voter registration database that contains incorrect and missing information. The district court ruled that the matching requirement violates the Materiality Provision of Section 101 of the Civil Rights Act of 1964 by rejecting mail-in ballot applications and votes “based on errors or omissions on a record or paper relating to an act requisite to voting that are not material in determining whether voters are qualified under Texas law to vote or to cast a mail ballot.”

Trial on the remaining claims, which challenge prohibitions on certain forms of mail ballot assistance and protected speech, concluded on October 19 after nearly six weeks of testimony from dozens of witnesses. The case is now under advisement.  

“We have already seen portions of S.B. 1 rolled back as unlawful restrictions on voting,” said Partner Alex Trepp. “Having heard compelling testimony on our remaining challenges, including obstacles presented by the provisions addressed at trial, we hope these harmful limitations on the right to vote will be struck down.”

In 2021, Jenner & Block joined the Texas Civil Rights Project, American Civil Liberties Union, the ACLU of Texas, Asian American Legal Defense and Education Fund, and Disability Rights Texas to file the lawsuit on behalf of the League of Women Voters of Texas, Register, Educate, Vote, & Use your Power - Texas (REV UP Texas), and OCA Greater Houston. 

In addition to Alex, the firm team includes Partners Jessica Ring Amunson and Sam Hirsch, Associates Sophia Cai, Alyssa Bernstein, Greg Washington, Senior Paralegal Albert Peterson, and former Associate Urja Mittal.

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© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.

Judge Grants Partial Summary Judgment in Texas Anti-Voter Law; Trial Concludes on Remaining Provisions

In August, a federal court granted partial summary judgment in favor of civil rights groups who filed a lawsuit against Senate Bill 1 (SB 1), a Texas law that has disenfranchised voters. Senate Bill 1 requires mail voters to provide an ID number that matches the number contained in their voter file, which is maintained in a Texas voter registration database that contains incorrect and missing information. The district court ruled that the matching requirement violates the Materiality Provision of Section 101 of the Civil Rights Act of 1964 by rejecting mail-in ballot applications and votes “based on errors or omissions on a record or paper relating to an act requisite to voting that are not material in determining whether voters are qualified under Texas law to vote or to cast a mail ballot.”

Trial on the remaining claims, which challenge prohibitions on certain forms of mail ballot assistance and protected speech, concluded on October 19 after nearly six weeks of testimony from dozens of witnesses. The case is now under advisement.  

“We have already seen portions of S.B. 1 rolled back as unlawful restrictions on voting,” said Partner Alex Trepp. “Having heard compelling testimony on our remaining challenges, including obstacles presented by the provisions addressed at trial, we hope these harmful limitations on the right to vote will be struck down.”

In 2021, Jenner & Block joined the Texas Civil Rights Project, American Civil Liberties Union, the ACLU of Texas, Asian American Legal Defense and Education Fund, and Disability Rights Texas to file the lawsuit on behalf of the League of Women Voters of Texas, Register, Educate, Vote, & Use your Power - Texas (REV UP Texas), and OCA Greater Houston. 

In addition to Alex, the firm team includes Partners Jessica Ring Amunson and Sam Hirsch, Associates Sophia Cai, Alyssa Bernstein, Greg Washington, Senior Paralegal Albert Peterson, and former Associate Urja Mittal.

Related Capabilities

Related Locations

© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.

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