This is the latest word from the US Supreme Court according to your citation.

"Chief Justice John G. Roberts Jr. wrote in Trinity Lutheran v. Comer. “But the exclusion of Trinity Lutheran from a public benefit for which it is otherwise qualified, solely because it is a church, is odious to our Constitution all the same, and cannot stand.”

So it sounds like Trump's Tweet also follows the law.

Trump Tweet:

"Churches in Texas should be entitled to reimbursement from FEMA Relief Funds for helping victims of Hurricane Harvey (just like others)."

5:56 PM - Sep 8, 2017 

You know, this 'following the law' thing could catch on!