The federal complaint in Commonwealth v. HHS was filed yesterday by Massachusetts, which is asking for federal recognition of its same-sex marriages, not for the invalidation of all state laws limiting marriage to opposite-sex couples. Massachusetts makes two federalism-based constitutional claims against Section 3 of DOMA, which defines marriage as the union of one man and one woman for purposes of federal law.
The first claim is that Section 3 “violates the Tenth Amendment, exceeds Congress