Axelrod is setting this up so that the Reps who are the minority will be jeered and shouted at by the majority, i.e., the Dems. And when the Reps express their disapproval, they will be portrayed as racists and against health care reform. The image will be that the majority [of Congress] favor ObamaCare. Some Americans may be swayed by that image and may want to identify with the "majority." Goebbels would be proud.
And Obama will get a huge public audience. If the Reps were smart, they would boycott it.