As far as the left is concerned (Due to the idiocies and humiliation of 8 years of the Clinton Regime, and the love of revenge that so many have)..if Bush had America involved in this from the get-go, the left would have been saying "Stay out of it, its none of our business!", then demonstrations would have started.
Now, they say "You have not done enough! Get involved!"
So, Damned if he does, damned if he doesn't. (Shrugs)