Obama even slightly reversed the Bradley Effect by outperforming the poll predictions in the 2008 election.

FORBES: Does the Bradley Effect Overrate Obama in the Polls?

So why do I suspect the Bradley Effect will return in 2012?

FORBES: Does the Bradley Effect Overrate Obama in the Polls?

In the past 15 years or so, there's been no indication in the polls that the Bradley effect has been a factor in statewide races.

CNN: Will Obama suffer from the 'Bradley effect'?

So, you are going to see a reverse Bradley effect.

NPR: Reliably GOP States Still In Play In Presidential Race

U.S. pollsters call that the "Bradley Effect, " after Tom Bradley, an African-American candidate who was ahead in the polls but still lost his 1982 campaign to be governor of California.

CNN: Is the White House battle over already?

He says there is a reverse Bradley effect.

NPR: As Obama Leads Polls, Bradley Effect Examined

During this year's Democratic primaries, University of Washington social psychologist Tony Greenwald did a study to see if there was a Bradley or Wilder effect at work in the contest between Hillary Clinton and Barack Obama.

NPR: As Obama Leads Polls, Bradley Effect Examined

Bradley scored with jabs down the middle and with hooks to the body, but not with dramatic effect.

WSJ: Bradley Wins Controversial Decision Over Pacquiao