The United States Supreme Court held that Congress' passage of the Religious Freedom Restoration Act of 1993 violated the Enforcement Clause of the United States Constitution.
City of Boerne v. Mores, 117 S. Ct. 2157 (1997).
Melissa M. Furrer,
Constitutional Law - First Amendment - Enforcement Clause - Religious Freedom Restoration Act of 1993,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol36/iss4/11