The First Amendment defines the boundaries of the power of the State - both in Federal and State governments (the US Constitution has supremacy over State Constitutions, as is indicated by the 10th Amendment). read more
The freedom of exercise clause, as currently interpreted by the courts, means that neither congress nor any state or city may make any law that is targeted at a religious practice of any kind. read more
Overall, Grim's characterization of Pew's research suggests that the "moderate" restrictions on religion in the U.S. aren't primarily abridgments of freedom; they're part of the complex puzzle of governing a pluralistic political community. read more
Religious Freedom. Current legal precedent has stripped the free-exercise clause of any scope, beyond reiterating the illegality of ad hoc laws. A conservative court ruling could change that, but for now religious practices in the United States are subject to federal, state, and local laws. read more