DOMA and the Tenth Amendment

David Kopel writes at the Volokh Conspiracy:

... Massachusetts v. HHS ... found DOMA unconstitutional, as applied to Massachusetts, because DOMA violates the Tenth Amendment by infringing the state's traditional core sovereign power of defining lawful marriages. The most important parts of the Tenth Amendment analysis are at pages 28–36 of the opinion.

....As much as liberals might applaud the result, they should be aware that the logic of his arguments, taken seriously, would undermine the constitutionality of wide swaths of federal regulatory programs and seriously constrict federal regulatory power." In particular:

The modern state depends heavily on the federal government's taxing and spending powers for many of the benefits that citizens hold dear, including Medicare, Medicaid, Social Security, and the newly passed provisions of the Affordable Care Act. These programs have regulatory effects on state family policies just as much as DOMA does. If DOMA's direct interference with state prerogatives is beyond federal power, then perhaps any or all of these programs are vulnerable– and unconstitutional– to the extent they interfere with state policies regarding family formation as well. Put differently, Judge Tauro has offered a road map to attack a wide range of federal welfare programs, including health care reform. No matter how much they might like the result in this particular case, this is not a road that liberals want to travel.

Well, as my former boss, Colorado Attorney General Duane Woodard once put it, "There's no liberal constitution or conservative constitution. It's just the Constitution." The Tenth Amendment is one of the roads that all conscientious American judges must travel, regardless of whether they personally like all of the places its leads.

....

Balkin is right to point out that the new federal health control law could be found unconstitutional by any court which applies the Tenth Amendment as seriously as did Judge Tauro.