WASHINGTON — Concluding two days of intense debate, the Supreme Court signaled Wednesday that it could give a boost to same-sex marriage by striking down the federal law that denies legally married gay spouses a wide range of benefits offered to other couples.
As the court wrapped up its arguments over gay marriage in America, a majority of the justices indicated they will invalidate part of the federal Defense of Marriage Act — if they can get past procedural problems similar to those that appeared to mark Tuesday’s case over California’s ban on same-sex marriage.
Since the federal law was enacted in 1996, nine states and the District of Columbia have made it legal for gays and lesbians to marry. Same-sex unions also were legal in California for nearly five months in 2008 before the Proposition 8 ban.
Justice Anthony Kennedy joined the four more-liberal justices in raising questions Wednesday about a provision that defines marriage as the union of a man and a woman for purposes of federal law.
It affects more than 1,100 statutes in which marital status is relevant, dealing with tax breaks for married couples, Social Security survivor benefits and, for federal employees, health insurance and leave to care for spouses.
Kennedy said the Defense of Marriage Act appears to intrude on the power of states that have chosen to recognize same-sex marriages.
Other justices said the law creates what Justice Ruth Bader Ginsburg called two classes of marriage, full and “skim-milk marriage.”
If the court strikes down part of DOMA, it would represent a victory for gay rights advocates. But it would be something short of the endorsement of gay marriage nationwide that some envisioned when the justices agreed in December to hear the federal case and the challenge to California’s ban on same-sex marriage.