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U2 lead singer Bono, second from left, discusses the global AIDS crises at a press conference with, from left, Sen. Rick Santorum, R-Pa., Sen. Orrin Hatch, R-Utah, and Sen. Jesse Helms, R-N.C. in this June 13, 2001, photo. "He's transcended music," said former Rep. John Kasich, R-Ohio, who met Bono through Arnold Schwarzenegger and later introduced the musician to Helms and Santorum. "He's gone from a rock band to a rock band with a purpose." (AP Photo/Dennis Cook)