Any American who is preparing to run for president should automatically by definition be disqualified. From ever doing so. So said Gore Vidal but like it or not they're often running and some of what... See More
Any American who is preparing to run for president should automatically by definition be disqualified. From ever doing so. So said Gore Vidal but like it or not they're often running and some of what they're saying might seem perfectly nice. -- -- you really listen. Here's ABC's John Brown. Don't look now but there are two campaigns going on here the one into the -- world -- all the smiley -- candidates are trying to win your vote. In the one in -- world. Were all the -- cheering candidates are trying to mess with your brain I think people understand that a man steadiness and Constance. It's sad for Mitt Romney seems like it lives in -- world. But on the -- of the same woman for what he thought. I get in trouble for 42 -- But you know who hasn't been very -- the same woman for 42 years twice divorced Newt Gingrich gets freaky world. It happened world it's nice that it -- he can say -- been the same church my entire. But you know who hasn't been in the -- -- whole life. -- -- turn southern Baptist turned Catholic. Newt Gingrich -- been dropping and after this message you can bet he does because the subliminal messages that dominate the landscape of tricky world. -- campaign staple. Nothing says you -- slow through this guy like grainy photos and -- to music. The tricky world can be in focus is it even DeVine. Rick Perry's been running ads in Iowa touting his -- I'm not ashamed to admit that our first. Happy world but. When you run for president. Get a bunch of questions about -- fate. You know who gets a lot of questions about his -- Mitt Romney's Mormon beliefs are seen as a turnoff for some evangelical voters. Tricky -- comes in all shapes and sizes right down to the size of a rat. Perhaps the most famous and -- little animals. The gore prescription plan. Thanks to you may have missed it but this Republican ad for George W. Bush in 2000. -- to -- Al Gore. -- Now that's subliminal. Even at George Bush would be admitted. And I didn't see a -- But I -- that involved or couldn't pronounce it did not they did and did you talk about that little boy -- In there was little discipline and a bull. About the adds Jon Corzine's writ against Chris Christie in 2009. -- showcases his dour rules which prompted Christie -- famously response to Don Imus orderly and -- up and failed. In our latest poll 79%. Of high -- -- -- to marital past is not a major factor. Rick Perry's add on faith has registered -- hundreds of thousands of times. Dislikes on YouTube. You know there's something wrong in this country when gays can serve openly in the military. -- our kids can't openly celebrate Christmas pray in school. -- was elected governor Jon Corzine was testifying to congressional investigation to date not a great track record. Maybe subliminal it is not so blind you're on John Berman for Nightline in New York.
This transcript has been automatically generated and may not be 100% accurate.