“I don’t see the “why” of this major shift which happened after 2008, Obana’s election.”
I think there is significant Dem voter dissatisfaction with Obama among centrist, “normal”, non ideologue Democrats. I have a lib brother-in-law that would email me all the time after Obama won, and was touting another victory before the ‘10 election.
Now I never hear from him. He is a white collar worker whose company has been hit hard. My sister says he feels disenfranchised over many things. He may grudgingly vote for him again. She says he even wishes he had another choice.
I think there is a good number of Dems like this and this is why the left pollsters are skewing their numbers to eliminate this silent group of disaffected Dem voters.
I predict a landslide for Romney.
That makes sense. Obama took a hard left turn after the election and drove away the centrists. It’s the best reasoning that I’ve seen so far.