Our former Senator remains in attack mode:

He criticized GOP leaders for not battling back on the Defense of Marriage Act. (Philly Now/PoliticsPa).

The Hill has a similar story, and quotes a Tweet.

UPDATE: 10:04 a.m. Santorum's proposal that the House GOP should defend DOMA is gaining traction. In an interview with Christian Broadcasting Network News, Speaker John Boehner seemed to back the proposition -- which, most important to Santorum, is being referred to as The Rick Santorum Idea:

David Brody; “Rick Santorum says that the Speaker of the House should appoint a counsel representing the House of Representatives to take up the case and argue DOMA in federal court. Is that a good idea?”

Speaker John Boehner: “It’s an option being considered.”

David Brody: ”And on these options the bottom line is that something is going to happen from the House and something will get done?”

Speaker John Boehner: “I’d be very surprised if the House didn’t decide that they were going to defend law.”