FILE - In this Dec. 17, 2013 file photo, Sen. Tom Coburn, R-Okla., a longtime deficit hawk, outlines his annual “Wastebook,” which points a critical finger at billions of dollars in questionable government spending during a news conference on Capitol Hill in Washington. U.S. Sen. Tom Coburn says he plans to finish the current year in office and resign his seat nearly two years before his term is scheduled to end. The 66-year-old Coburn released a statement late Thursday, Jan. 16, 2014 saying he would give up his seat at the end of the current session of Congress, scheduled to end in January 2015.(AP Photo/J. Scott Applewhite, File)