WASHINGTON - NOVEMBER 20:  House Oversight and Government Reform Committee Chairman Henry Waxman (D-CA) arrives for the House Democratic Caucus meeting on Capitol Hill November 20, 2008 in Washington, DC. Waxman is trying to wrest control of the influential Committee on Energy and Commerce from its current chairman, Rep. John D. Dingell (D-MI), one of the longest serving member of Congress. Getty Images logo Getty Images 12 months ago

WASHINGTON - NOVEMBER 20: House Oversight and Government Reform Committee Chairman Henry Waxman (D-CA) arrives for the House Democratic Caucus meeting on Capitol Hill November 20, 2008 in Washington, DC. Waxman is trying to wrest control of the influential Committee on Energy and Commerce from its current chairman, Rep. John D. Dingell (D-MI), one of the longest serving member of Congress.