At the conclusion of the week-long hearing on “cap and trade” legislation in the House Energy and Commerce Committee on Friday, the Democrats’ headline witness was none other than Mr. Global Warming himself, former Vice President Al Gore. One member of the panel, Rep. Marsha Blackburn (R-Tenn.), took the opportunity to ask her fellow Tennessean a multi-million dollar question on behalf of “some of his former constituents.” Throughout Gore’s earlier testimony, he had questioned the integrity of scientists and studies that found the opposite conclusions of his personal view: there is no smoking gun either proving or disproving that the...