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.

The ACLU, the ACLU of Northern California, and the ACLU of Southern California filed amicus briefs in support of everyday people fighting for government transparency and accountability in two cases set for review by the U.S. Supreme Court this Term: O’Connor-Ratcliff v. Garnier and Lindke v. Freed.

The American Civil Liberties Union, Southern Poverty Law Center, and Center for Gender & Refugee Studies filed a federal lawsuit challenging the Trump administration’s new policy forcing asylum seekers to return to Mexico and remain there while their cases are considered.

On March 21, 2019, the American Civil Liberties Union and MediaJustice, formerly known as "Center for Media Justice," filed a Freedom of Information Act lawsuit seeking records about FBI targeting of Black activists. The lawsuit enforces the ACLU and MediaJustice’s right to information about a 2017 FBI Intelligence Assessment that asserts, without evidence, that a group of so-called “Black Identity Extremists” poses a threat of domestic terrorism. The Intelligence Assessment was widely disseminated to law enforcement agencies nationwide, raising public concern about government surveillance of Black people and Black-led organizations based on anti-Black stereotypes and First Amendment protected activities.