Two things to do with this...
First, forward the URLs onto the FBI. Seriously. Hacking/DOS is a felony offense.
Second, I would suggest the RNC contact Mr. Steve Gibson, of Gibson Research (www.grc.com) for help thwarting the hack/dos attempt. He may or may not share the RNC's philosophies, but he's anti-hacker and has developed tools to 'honey pot' hack attempts.
I just submitted this, you gotta love the radical leftists
Is that you, Steve?