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Sen. William Cohen, R-Maine., listens to Sen. Carl Levin, D-Mich., during Joint Committee on the Organization of Congress Hearing, on June 24, 1993. (Photo by Maureen Keating/CQ Roll Call via Getty Images)

Sen. William Cohen, R-Maine., listens to Sen. Carl Levin, D-Mich., during Joint Committee on the Organization of Congress Hearing, on June 24, 1993. (Photo by Maureen Keating/CQ Roll Call via Getty Images)

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