How and why could the polls be so wrong?
There are reports from all areas of voter fraud.
Here are a few:
Vote was astronomical for Obama in some Philadelphia wards
In 13 Philadelphia wards Obama received 99% or more of the vote
http://articles.philly.com/2012-11-09/news/34995157_1_voter-turnout-president-obama-gop-voters
What Luck! Obama Won Dozens of Cleveland Districts with 100% of the Vote
In Cleveland, in some districts he did even better with an astounding 100% of the vote in dozens of locations.
http://www.punditpress.com/2012/11/what-luck-obama-won-dozens-of-cleveland.html
Colorado Counties Have More Voters Than People
Census records reveals ten counties having a total registration ranging between 104 to 140 percent of the respective populations.
http://www.redstate.com/2012/09/04/colorado-counties-have-more-voters-than-people/
Didn't think so.