Pete Winn reports at CNSNews.com:

Media Research Center President L. Brent Bozell III laid down the gauntlet to the news media on Thursday over their coverage of the 2012 presidential race: Tell the truth about the candidates, or be exposed.

“It’s 2012, and already we’ve documented endless examples of the so-called ‘news media’ covering up the failures of the Obama presidency and attacking every conservative presidential candidate one by one by one,” Bozell said.

“These attacks, just as we predicted, aren’t based on policy debates, they’re personal," he said, "an onslaught of character assassination against anyone who dares to challenge Obama.”

Bozell announced the start of the "Tell the Truth 2012 Campaign" -- a $5 million campaign to document and expose liberal media bias and its role in the 2012 presidential election.

Bozell charges that Sarah Palin, Michele Bachmann, Herman Cain, Rick Perry, Rick Santorum, and Newt Gingrich have all been subjected to intense media bias. 

The challenge, Bozell says, is for the "news media to be fair and even-handed: If reporters are going to ask tough questions, then they should ask them of both sides in the election."

For example, “Who was Michelle Obama sleeping with before Barack Obama? If you think that's an outrageous question -- and I'd agree -- then why did you ask it about Mrs. Santorum?" Bozell asks.

According to CNS, "Bozell said hundreds of thousands of 'I Don't Believe the Liberal Media!' bumper stickers, buttons and signs will be distributed, and the [Media Research Center's] 1 million Facebook fans and 65,000 Twitter followers will also be activated."