This case concerns whether applying a public-accommodation law to compel a business that chooses to serve the public to provide wedding website design services without discriminating against a same-sex couple violates the free speech clause of the First Amendment.

The ACLU is challenging the constitutionality of the NSA’s mass interception and searching of Americans’ international Internet communications. At issue is the NSA’s “Upstream” surveillance, through which the U.S. government systematically monitors private emails, messages, and other data flowing into and out of the country on the Internet’s central arteries. The ACLU’s lawsuit was brought on behalf of the Wikimedia Foundation and eight legal, human rights, and media organizations, which together engage in trillions of sensitive communications and have been harmed by Upstream surveillance.

This case is about whether the First Amendment permits criminal punishment of speech that merely encourages a noncitizen to remain in the United States, without any requirement of intent to further illegal conduct, and when remaining in the United States unlawfully is itself not a crime.

The ACLU National Prison Project and partner civil rights attorneys filed a federal class-action lawsuit to prevent the transfer of children in the custody of Louisiana’s Office of Juvenile Justice to the Louisiana State Penitentiary, commonly known as Angola Prison.

UPDATE: In a thorough and sweeping order issued on January 9, 2023, U.S. District Judge Roslyn O. Silver is requiring the Arizona Department of Corrections, Rehabilitation, and Reentry (“ADCRR”) to make “substantial” changes to staffing and conditions so that medical care and mental healthcare at Arizona prisons comes up to constitutional standards.

The case concerns the constitutionality of a Mississippi law prohibiting abortions after the fifteenth week of pregnancy. The state used the case as a vehicle to ask the Supreme Court to take away the federal constitutional right to abortion it first recognized 50 years before in Roe v. Wade. On June 24, 2022, the Supreme Court of the United States accepted the state’s invitation and overturned Roe eliminating the federal constitutional right to abortion.

In a case scheduled to be argued before the U.S. Supreme Court on November 8, 2021, three Muslim Americans are challenging the FBI’s secret spying on them and their communities based on their religion, in violation of the Constitution and federal law. In what will likely be a landmark case, the plaintiffs — Yassir Fazaga, Ali Uddin Malik, and Yasser Abdelrahim — insist that the FBI cannot escape accountability for violating their religious freedom by invoking “state secrets.” The plaintiffs are represented by the Center for Immigration Law and Policy at UCLA School of Law, the ACLU of Southern California, the American Civil Liberties Union, the Council for American Islamic Relations, and the law firm of Hadsell Stormer Renick & Dai.

In 2018, the American Civil Liberties Union and the ACLU of Kentucky filed a suit on behalf of Kentucky abortion providers and their patients challenging a state law banning physicians from providing a safe and medically proven abortion method called dilation and evacuation, or “D&E.” If it were to take effect, this law would prevent many patients from being able to obtain an abortion altogether. After two courts held that the law is unconstitutional, the Supreme Court ruled in March 2022 that Kentucky Attorney General Cameron can continue his pursuit to push abortion out of reach by intervening in the underlying challenge to an abortion ban, which is proceeding in a lower court.

Whether Alabama’s congressional districts as drawn in 2021 violate Section 2 of the Voting Rights Act because they discriminate against Black voters.