Time Magazine: Many congressional veterans were surprised when House Democrats, meeting as a caucus, voted 137-122 to oust Michigan’s John (the Truck) Dingell, 82, as chairman of the House Energy and Commerce Committee and give the post to Waxman. Few jobs in Congress are as powerful; the committee has one of the largest swaths of jurisdiction, encompassing energy, health-care and environmental issues. Waxman’s elevation upends one of the most revered principles on Capitol Hill: the seniority system. “It’s …