A George W. Bush appointee, federal Judge Vanessa Bryant, has ruled DOMA unconstitutional in Pedersen et al v. Office of Personnel Management et al, concluding:
“[….]having considered the purported rational bases proffered by both BLAG and Congress and concluded that such objectives bear no rational relationship to Section 3 of DOMA as a legislative scheme, the Court finds that no conceivable rational basis exists for the provision. The provision therefore violates the equal protection principles incorporated in the Fifth Amendment to the United States Constitution.”
Section 3 “prohibits the federal government from recognizing same-sex marriages”, and thus “violates equal protection guarantees”.