Windsor v. United States
This case addresses Edie Windsor's constitutional challenge to Section 3 of the Defense of Marriage Act (DOMA), which defined marriage exclusively as between one man and one woman. This definition required Windsor to pay federal estate tax on her late same-sex spouse's estate, a tax from which heterosexual couples were exempt. Windsor contended that Section 3 of DOMA violated the Equal Protection Clause of the Fifth Amendment. The Bipartisan Legal Advisory Group (BLAG) intervened to defend DOMA's constitutionality. The Court denied BLAG's motion to dismiss and granted Windsor's motion for summary judgment, ruling that Section 3 of DOMA is unconstitutional as applied to Windsor and awarded her $353,053.00 plus interest and costs.