Barbara Mikulski and Other Long-Serving Senators -- PICTURES

By Barrett Holmes Pitner

Updated: March 20, 2012 | 8:52 a.m.
March 20, 2012 | 6:00 a.m.

On the occasion of Sen. Barbara Mikulski, D-Md., becoming the longest-serving woman in Congress, National Journal takes a look at other long-serving current senators.

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Barbara Mikulski, D-Md., is not only the longest-serving woman in the Senate, having assumed office on Jan. 3, 1987, she is also the longest-serving congresswoman, having served in the House from 1977 to 1987 for a combined time of more than 35 years in Congress. (ROB CARR/AP)

Sen. Daniel Inouye, D-Hawaii, assumed office on Jan. 3, 1963. He is the second-longest-serving senator in history and the longest-serving current senator. (JOSE LUIS MAGANA/AP)

Sen. Patrick Leahy, D-Vt., has served for more than 37 years, since Jan. 3, 1975. (MANUEL BALCE CENETA/AP)

Sen. Richard Lugar, R-Ind., has served for more than 35 years, since Jan. 3, 1977. (J. SCOTT APPLEWHITE/AP)

Sen. Orrin Hatch, R-Utah, has served for more than 35 years, since Jan. 3, 1977. (MANUEL BALCE CENETA/AP)

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