that should be pretty easy to prove if it were true
there was a big hoax poll out there, and a few right-wing news outlets fell for it. Wasn't an actual poll, more of a combination of obama AND romney voters.
I believe something like 6% of obama voters, or 3% of overall 2012 voters, woudl have changed their vote, by the actual poll. it's a huge thing - it means romney would have won election if it was done today. however, the "MAJORITY" line, that's not true at all.