The Supreme Court has long held that being a taxpayer doesn’t give you standing to sue the government just because you don’t like how they’re spending your money; that’s not a “concrete” injury. You can’t sue to stop policies you oppose just because the government is using your tax money.
That is, unless it’s about religion. In 1968, the liberal Warren Court carved out a narrow rule that if the government spends any money on something that involves faith, a person can be so offended that this creates a mental “injury” for which they can sue. This rule, from Flast v. Cohen, has been used to wound faith-based organizations in federal court ever since its inception. It’s a weapon of choice of the Left to purge the public square of all reference to God.
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