The Obama administration on Tuesday asked the Supreme Court to consider two more cases challenging the constitutionality of the Defense of Marriage Act (DOMA), the 1996 law which forbids federal agencies from recognizing the legal marriages of gay and lesbian couples.

The U.S. Department of Justice filed two similar requests in July.

One of the cases submitted Tuesday involves Edith Windsor, an 83-year-old lesbian who received an estate bill of more than $360,000 after the death of her wife Thea Spyer. Windsor sued, arguing that DOMA violates the equal protection guarantee of the U.S. Constitution. If the high court agrees to take the case, the lawsuit would bypass consideration before an appeals court.

The second case involves six gay married couples and one widower who allege they have been denied federal benefits because of the law. Lead plaintiff Joanne Pedersen, a federal retiree, was denied when she attempted to add her wife Ann Meitzen to her health insurance.

In July, a federal judge in Connecticut sided with plaintiffs, concluding that DOMA violates equal protection guarantees.

The House's Bipartisan Legal Advisory Group (BLAG) has intervened in at least 12 DOMA-related cases – including Pedersen – since President Barack Obama instructed the Department of Justice to no longer defend the law in court.