I think your memory of GWB's early time in office is basically fucked and after 9/11, not too many months later, he got unparalelled support from all corners. Bush's first major policiy initiative, the 2001 tax cuts, got support from Democrats in both houses. Obama's first major policy initiative, the Stimulus bill, which was passed in the midst of a major economic crisis garnered 3 Republican votes, one of which was from Specter.
Apparently your memory is lacking; did you forget the attempts by Democrats to steal the election by divining votes from hanging chads and the angry mob like attitudes that the Bush Presidency was illegitimate? How about the lies about his National Guard service and how he was unqualified to serve as Commander and Chief?
You Liberals don't just wallow in hypocrisy and selective outrage, you submerge in it.