Words mean what they say. That’s the basis for the decision of the U.S. Court of Appeals for the D.C. Circuit in Halbig v. Burwell invalidating the Internal Revenue Service regulation approving subsidies for Obamacare consumers in states with federal health insurance exchanges.

The law passed by Congress, Judge Thomas Griffith explained, provided for subsidies in states with state-created exchanges, but not in states with federal exchanges. That’s factually correct, and under the Constitution, the government can’t spend money not authorized by Congress.