pastor. >> gregg: live in georgia, elizabeth, thanks. >> julie: 50 years ago, presidential politics took a giant leap forward into the modern area, j.f.k. and richard nixon took part in a landmark debate and america would never be the same again. eric sean has the story. >> eric: it simply changed the way we elect presidents. 70 million americans watched as john f. kennedy and richard m. nixon sparred in the first live televised presidential debate. >> the question before us. >> chris: which point of view and which party do we want to lead the united states. >> i know what it means to be poor. i know what it means to see people who are unemployed. >> the 7th game of the world series becomes those debates... >> eric: the author of the new book, "1960, lbj versus j.f.k. versus nixon". >> it is two men stripping down, going into the ring, one-on-one and each hoping to bloody the other one.