Potter Stewart,
Flast v. Cohen — Concurrence
“ I join the judgment and opinion of the Court, which I understand to hold only that a federal taxpayer has standing to assert that a specific expenditure of federal funds violates the Establishment Clause of the First Amendment. Because that clause plainly prohibits taxing and spending in aid of religion, every taxpayer can claim a personal constitutional right not to be taxed for the support of a religious institution. ”
