US NEWS MIKULSKI-WOMEN 2 BZ

U.S. Sen. Barbara Mikulski (D-MD) is the longest-serving female in the history of the Senate. Not only doe she handle her legislative duties, but she travels the country campaigning for other women candidates for office. She is shown in January 2011 at her district office in Baltimore, Maryland. (Jed Kirschbaum/Baltimore Sun/MCT)