(CBS News) -- One of the wildest political races in the country istaking place in South Carolina. That's where a congressional campaign isbringing out a rich cast of characters.

South Carolina is known for its politics, but this race may top themall. It's a free-for-all election filled with a colorful, controversialcast of 18 candidates, and they're all slugging it out for the state'sone congressional seat.

On the Republican side: two standout. There's the political novice in high school economics teacherTeddy Turner, He's the son, you guessed it -- of eccentric media mogulTed Turner. Teddy Turner said of his father, "He's a pretty big liberalthese days. But you know it shouldn't hurt you, but it does becausepeople won't let me escape it."

And then there's theestablishment candidate: disgraced former Gov. Mark Sanford, seekingredemption. Sanford has said, "I've never really failed in life, insomething of significance. And boy, I made up for lost time. I failedmightily."

Sanford is a front-runner despite his publicadmission of an affair which prompted his wife to leave the governor'smansion with their four sons and divorce him. He consulted each of thembefore deciding to run for the seat he once held. Referring to hisfamily, he said, "They said, 'No dad, you've got to do it. Here's achance for you to try and make a difference and you ought to.' So here Iam."

But the other candidates aren't as forgiving --like Turner, who used to work for the media company his father foundedand sounds as almost outspoken. Turner told CBS News, "I have no problemwith him being unfaithful. That's between his ex-wife and the goodLord. What he did do was abandon the state. What he did do was becomethe highest fined politician in South Carolina history."

Onthe Democratic side: one candidate brings her own unique star power.Elizabeth Colbert Busch, the older sister of television comedian StephenColbert, who's her loudest cheerleader and fundraiser.

Ina video made by Colbert, he jokes, "As a broadcast journalist, I amobligated to maintain objectivity. It doesn't matter that my sister isintelligent, hardworking, compassionate, and dedicated to the people ofSouth Carolina."

A single mother of three and abusinesswoman, Colbert Busch now works for Clemson University. And likeSanford, knows struggle. Busch said, "When I was a young girl, I lost myfather and two brothers, and it was a very deep sudden loss in a planecrash. But when I came home, I saw the most powerful, wonderfulcourageous woman: my mother. Even your struggles become a blessing. Thisis what my mother taught me. Keep one foot in front of the other."

As for Sanford, he asked his ex-wife Jenny to run his campaign. Shedeclined, but Sanford told CBS News' Jan Crawford that everything hewent through has made him a more humble, compassionate person. He saysthat's going to make him a better lawmaker if he's elected. Sanford isexpected to face a Republican runoff in April. The Republican andDemocrat will then face off in May.

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