Bio
Daniel Mach is the director of the ACLU Program on Freedom of Religion and Belief. He leads a wide range of religious-liberty litigation, advocacy, and public education efforts nationwide, and often writes, teaches, and speaks publicly on religious freedom issues. Mach currently serves as an adjunct professor of law at the George Washington University Law School, focusing on constitutional law and religious liberty. Prior to his work at the ACLU, Mach was a partner in the Washington office of Jenner & Block, where he specialized in First Amendment law.
Featured work
![The justice statue in front of the Oklahoma state flag.](https://assets.aclu.org/live/uploads/2024/06/oklahoma-school-blog-400x266.jpg)
Jun 25, 2024
The Oklahoma Supreme Court Just Rejected the Nation’s First Religious Public Charter School
![A shot of an empty corridor in a high school.](https://assets.aclu.org/live/uploads/2023/07/lockers-charter-school-blog-400x266.jpg)
Jul 31, 2023
A Religious Public Charter School in Oklahoma? Not on Our Watch.
![A protestor holds a sign reading "Keep Your Religion Out of My Government" during a rally at Memorial Park in Danville, Pennsylvania.](https://assets.aclu.org/live/uploads/2022/07/SCOTUS-CHURCH-Blog-400x266.jpg)
Jul 6, 2022
The Supreme Court Benches the Separation of Church and State
![The front of the Supreme Court, as a few people are walking up and down its stairs, on a sunny day in 2012.](https://assets.aclu.org/live/uploads/2020/02/Supreme-Court-2020-Header-Image-400x266.jpg)
Apr 25, 2022
The Supreme Court Must Protect Students From School-Sponsored Prayer
![A woman receives the Pfizer COVID-19 vaccine, Thursday, Sept. 2, 2021.](https://assets.aclu.org/live/uploads/2021/09/Blog-Vaccine-Mandates-400x266.jpg)
Sep 2, 2021
Civil Liberties and Vaccine Mandates: Here’s Our Take
![A sign taped to the door of a church announcing services are cancelled due to COVID-19.](https://assets.aclu.org/live/uploads/2021/03/WEB21-Closed-Church-COVID-Standard-1110x740-1-400x266.jpg)
Mar 10, 2021
A New String of State Bills Could Give Religious Organizations Blanket Immunity from Any Wrongdoing
![People protest during a rally about the U.S. Supreme Court's decision to uphold President Donald Trump’s ban on travel from several mostly Muslim countries.](https://assets.aclu.org/live/uploads/2020/12/WEB20-Muslim-Ban-Protest-WordPress-1110x740-1-400x266.jpg)
Dec 8, 2020
The Biden Administration’s Religious Freedom To-Do List: Recommitting to Religious Liberty for All.
![Supreme Court at sunset](https://assets.aclu.org/live/uploads/2019/09/web19-supreme-court-sunset-1160x768-400x266.jpg)
Sep 20, 2019
The Supreme Court Considers Mandatory Government Funding of Religious Education
![World War I memorial cross in Bladensburg, Md.](https://assets.aclu.org/live/uploads/2019/09/web19-bladensburg-cross-1160x768-400x266.jpg)
Jun 20, 2019
Supreme Court Undermines Religious Neutrality In Permitting Giant Governmental Cross
![Supreme Court Justices](https://assets.aclu.org/live/uploads/2019/09/web19-supremecourtjustices-1160x768-400x266.jpg)
Feb 11, 2019
The Supreme Court Is Playing Favorites With Religion