The brief states Massachusetts agrees with the appellate ruling and "normally would oppose further review in order to ensure that judgment takes effect as soon as possible," but notes DOMA, which prohibit federal recognition of same-sex marriage, is of national importance and the high court in any event is likely to take up its review.

"On that assumption, the Commonwealth believes that the Court should conduct that review in the context of a case that presents the full range of constitutional challenges to DOMA, including challenges under the Tenth Amendment and Spending Clause that are best presented by a State," the brief states. "The Commonwealth accordingly agrees that the Court should grant review in this case and affirm the judgment of the court of appeals."