Talk about stating the obvious! Welcome to reality, guys:

President Obama ditched his bipartisan budget sales pitch Tuesday and went on the offense against his Republican critics. The move comes after the president felt substantial pushback from lawmakers in both parties who sharply attacked key elements in his $3.55 trillion proposal.

Sensing the lack of support, Obama has changed strategies and challenged members of Congress who have blasted his plan to come up with “constructive alternative solutions.” While the president said that he and Democrats are committed to a budget resolution that will put the nation on a path to prosperity, he decried opponents who have turned to “political tactics” and “point scoring” instead of “problem solving.”

[...] This time around, Obama appears to be employing a more partisan strategy. Obama’s top budget aide, Peter Orszag, went further in dismissing Republican critiques on Tuesday, saying that most reflected a viewpoint that “just empirically doesn’t work.”

Orszag, the Office of Management and Budget director, said some lawmakers’ suggestions during congressional hearings have been helpful, but input elsewhere hasn’t been.

“The chatter that fills the cable news networks I don’t think is intended to be constructive,” Orszag said at a lunch with reporters sponsored by The Christian Science Monitor.

[...] In response to GOP attacks, Obama and his allies are shifting into campaign mode. Obama is scheduled to push his budget plan during a rare sit-down interview Thursday on “The Tonight Show.” His presidential campaign manager, David Plouffe, sent an e-mail to his backers last weekend asking them to support the budget plan. And MoveOn.org, which galvanized liberals online to oppose President Bush’s agenda, has been asking its members to get behind Obama’s proposal.