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

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