Politico reports:

In a secret ballot vote in the Cannon Caucus Room, House Democrats ratified an earlier decision by the Steering and Policy Committee to replace the 82-year-old Dingell with his 69-year-old rival. The vote was 137-122 in favor of Waxman.

The ascension of Waxman, a wily environmentalist, recasts a committee that Dingell has chaired since 1981 with an eye toward protecting the domestic auto industry in his native Michigan. The Energy and Commerce Committee has principal jurisdiction over many of President-elect Barack Obama's top legislative priorities, including energy, the environment and health care.

"Seniority is important, but it should not be a grant of property rights to be chairman for three decades or more,” Waxman said after emerging from the caucus meeting.