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.