Two clauses in the First Amendment guarantee freedom of religion. The two clauses are establishment and free exercise. The establishment clause prohibits the government from passing legislation to establish an official religion or preferring one religion to another. It also prohibits the government from giving tax money to parochial institutions. It enforces the separation of church and state. In the 2002 Zelman versus Simmons-Harris case involving the Cleveland City School District, the Supreme Court confirmed the constitutionality of school vouchers and permitted the existence of the…