This June 5, 2012 file photo Senate Appropriations Committee Chair Sen. Barbara Mikulski, D-Md. speaks during a news conference on Capitol Hill in Washington. Mikulski, the longest-serving woman in the history of Congress, is making an announcement about her plans for the future. The 78-year-old senator in her fifth term is set to make the announcement at a news conference in Fells Point in Baltimore on Monday morning. (AP Photo/J. Scott Applewhite, File)

Longest running Congresswoman to retire

Sen. Barbara Mikulski, the longest serving woman in the history of Congress and a tough, no-nonsense lawmaker who rose to the top echelon of…