For those who shall remain nameless whose comments seem to indicate the belief that BHO's popularity funk is the consequence of progressives' disappointment with the man, we offer Mark Mellman's analysis of the 2010 midterms from The Hill.
Mellman notes well that compared to the 2006 midterms--not the 2008 presidentials, an invalid comparison--all the indicators show that the party of the left lost because voters who voted D in 2006 voted R in 2010.
The dramatic shift to the GOP happened in all demographic categories except African-Americans (whose political isolation is thereby indicated, but that's another topic). The only group with under-par turnout was union members, who still voted in numbers disproportionate to their percentage of the population at large but didn't respond to their leaders' marching orders with the same esprit de corps demonstrated in 2006. And if the term "Reagan Democrat" means anything these days, it has to suggest that at least as many who wear the union label were stay-at-homes because they were angry with the leftward direction taken by their patronage party as were disappointed that the Internationale is not yet the national anthem of the People's Republic of Lands Unfairly Taken.
BHO is in trouble along with his party because they really can't believe that this is an intrinsically center-right country. They believe all the fantasies that the Common Folk should Rise Up when they encounter the properly gifted and enlightened Beneficent Leader. And they get really prickly when the Common Folk don't do what they're supposed to do when given the chance.
Leave that waiter a good tip.