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No Al Gore today

From NBC's Mike Viqueira

Al Gore's scheduled appearance at a Democratic leadership rally promoting the energy bill has been canceled.

The official reason is that there is now a comfort level with the bill's prospects in the House that was not there just yesterday, and therefore Gore's presence both at a closed-door Dem caucus meeting and subsequent rally is not needed.

"It's a question of what was energy efficient for the vice president," said House speaker Nancy Pelosi.

There is also the feeling that a splashy rally might not be productive in terms of convincing fence sitters to vote "yeah" on the measure, as many of the holdouts are either moderate Dems or Republicans who might either wouldn't be at the caucus to begin with, or who might not be comfortable having Gore parachute in and be seen as having their arm twisted by the former veep.