[Ratman83]

From you wikipedia The Defense of Marriage Act (DOMA) (Pub.L. 104-199, 110 Stat. 2419, enacted September 21, 1996, 1 U.S.C. § 7 and 28 U.S.C. § 1738C) is a United States federal law that defines marriage as the legal union of one man and one woman for federal and inter-state recognition purposes in the United States.

[JustSayNoToNannies]

From you wikipedia The Defense of Marriage Act (DOMA) (Pub.L. 104-199, 110 Stat. 2419, enacted September 21, 1996, 1 U.S.C. § 7 and 28 U.S.C. § 1738C) is a United States federal law that defines marriage as the legal union of one man and one woman for federal and inter-state recognition purposes in the United States.

More precisely, for "determining the meaning of any Act of Congress, or of any ruling, regulation, or interpretation of the various administrative bureaus and agencies of the United States" (http://www.gpo.gov/fdsys/pkg/PLAW-104publ199/html/PLAW-104publ199.htm). Is it your position that it's unconstitutional for the federal government to determine the meaning of any Act of Congress, or of any ruling, regulation, or interpretation of the various administrative bureaus and agencies of the United States?