FILE - In this March 6, 2012, file photo Sen. Richard Lugar, R-Ind., the high profile 80-year-old ranking Republican on the Senate Foreign Relations Committee, waits with others for the arrival of the prime minister of Israel on Capitol Hill in Washington. The Senate's most senior Republican, serving in his sixth term, is the target of tea partyers trying to toss out veterans of the GOP establishment in the next election. (AP Photo/J. Scott Applewhite)