"FILE - In this Oct. 18, 2011, file photo Republican presidential candidates Mitt Romney and Rick Perry, right, spar during a Republican presidential debate in Las Vegas. Perry, still nursing wounds from his failed presidential campaign, did himself a world of good with his self-deprecating jokes at a dinner in Washington in March. First, he joked that his time as the GOP front-runner had been ""the three most exhilarating hours of my life."" Then he perfectly skewered Romney by quipping that during the GOP debates, he'd been tempted to turn to his rival and ask, ""Pardon me, do you have any Grey Poupon?"" (AP Photo/Chris Carlson, File)"
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