Logic would indicate being ahead in the polls would do just as you say, but human psychology is contrary in that some sheeple will only jump on the winning bandwagon, whether or not its fact. I am sure that is what the liberals are counting on, as all these slanted polls will be long forgotten by the time the election is done.
The dems are desperate to re-gin their 2008 voter's enthusiasm and these slant polls are aimed at them.
The Sheeple would vote for Obama anyway as they did in 2008.
People just need to think and use common sense. I really feel that is one of the things wrong with our country people do not use common sense. Instead we get these flowery talkers like Obama and people don't listen or questions what he is saying. I have never believed a word out of his mouth or his wife's ever.