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Sen. Richard Lugar, R-Ind., at a press conference discussing his decision to remain in Presidential race, in February 1996. (Photo by Maureen Keating/CQ Roll Call via Getty Images)

Sen. Richard Lugar, R-Ind., at a press conference discussing his decision to remain in Presidential race, in February 1996. (Photo by Maureen Keating/CQ Roll Call via Getty Images)

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