Tom Coburn, Reid Ribble, Roy Blunt, Rand Paul

    Sen. Tom Coburn, R-Okla., center, listens during a news conference on the debt ceiling on Capitol Hill in Washington, Thursday, July 21, 2011. He is joined by, from left, Rep Reid Ribble, R-Wisc, Sen. Roy Blunt, R-Mo., and Sen. Rand Paul., R-Ohio. (AP Photo/Susan Walsh)