Sen. Barbara Mikulski, D-Maryland, poses for a portrait outside her office, Tuesday, Jan. 4, 2011, in Baltimore. Mikulski will become the longest serving woman in the history of the U.S. Senate when ... more 
Sen. Barbara Mikulski, D-Maryland, poses for a portrait outside her office, Tuesday, Jan. 4, 2011, in Baltimore. Mikulski will become the longest serving woman in the history of the U.S. Senate when she is sworn into her fifth term later this month. less 
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Associated Press | Photo By Rob Carr
Wed, Jan 5, 2011 3:10 AM EST