Now to that amazing comeback from mark sanford, the former governor of south carolina may be best known for disappearing during his term to visit his girlfriend in argentina. His career seemed finish... See More
Now to that amazing comeback from mark sanford, the former governor of south carolina may be best known for disappearing during his term to visit his girlfriend in argentina. His career seemed finish but last night voters sent him to congress. Abc's jeff zeleny shows us how it happened. All: Let's go mark. Reporter: This morning mark sanford is the new comeback kid. I just want to acknowledge a god not good for second chances but third, fourth, fifth, sixth chances. We'll let the chips fall where they may. Reporter: And humiliated. Reporter: Overnight the disgraced former south carolina governor. The republican governor has disappeared. Reporter: Who made headlines saying he was hiking the appalachian trail when he was visiting his miss in argentina rose to the depth of the scandal and became the new member of congress even acknowledging on stage the argentinean woman he calls his soul mate. My fiancee had a ten-hour trip in an airplane rather than a car. Reporter: It unfolded like a steamy novel. His former wife jenny who left him flirted with the idea of running herself then later accused him of trespassing. All: This is our side. Reporter: Even his opponent seemed like a comic twist. The sister of steven colbert. We knew it would be an uphill climb. Reporter: First elected to congress in the 1984 gop wave and voters in this deeply republican district well aware of his indiscretions are sending him back to washington. And before he returns back here to the capital he faces another date in divorce court tomorrow with his ex-wife jenny.
This transcript has been automatically generated and may not be 100% accurate.