Maryland: Bill Henry

Demanue Millard is one of the most powerful political players in Baltimore, but the chief of staff to Mayor Sheila Dixon (D-Baltimore) keeps a low-key profile - mostly working behind the scenes.

Millard, 35, currently wears two hats in the Dixon administration. He's been serving as director of the Office of Governmental Relations since January 2007, but in July, Millard took on an even more challenging role - serving as chief of staff in the Dixon administration in the midst of an ongoing investigation into the mayor's relationship with a prominent city developer.