For Biden and Ryan, a marathon of disagreements

>>> good evening, the vice president debate is now history, and while all eyes are on next tuesday's presidential debate and the town hall format, we have learned the eyes of over 50 million americans were on last night's event, a crisply moderated event, rowdy at times, tense at times, between the two men who represented the largest age gap of any debate. paul ryan and joe biden were not at the top of the ticket, but the views were instant in both style and substance, we begin with ron mott traveling with the campaign in ohio, good evening, ron.

>> reporter: brian, good evening to you, as you can see behind me, governor mitt romney behind me in front of a very big crowd, about 8500 people, we're told. and we can tell you there is more confidence in the air around the republican ticket tonight, very pleased on how congressman paul ryan handled himself last night against a very seasoned debater, joe biden . reunited again after what the romney campaign says was a big win in kentucky last night, in a 90-minute marathon of disagreements over everything from social security and taxes.

>> it has never been done before.

>> reporter: the candidates fought over whether the obama administration dismissed security concerns at the u.s. consulate in libya.

>> we were not told they wanted more security. we did not know they wanted more security

>> reporter: it was topic number one, a charged moment in the night for the wisconsin congressman.

>> ronald reagan --

>> oh, now, your jack kennedy .

>> reporter: as predicted by the campaign, the vice president came out grinning, flapping, flailing arms. he was aggressive, attacking the republican ticket hard

>> we will have credibility on this issue.

>> incredible.

>> thank goodness we have these sanctions in place, in spite of their opposition. it has been discredited by studies, over a 100 criminal investigations.

>> reporter: along the way, the vice president cut in.

>> >> mr. vice president, i know you're under duress -- to make up for lost ground

>> reporter: he talked about the auto bailout.

>> when mr. ryan said that he was a car guy, i thought well if they have them in an elevator, i guess he was.

>> reporter: for a group of undecided voters put together in virginia, a split decision. this voter thought mr. biden won.

>> the vice president did.

>> why?

>> i think he came off as being very strong, emotional, and i like the looking at the camera and talking to the american people .

>> reporter: another, paul ryan .

>> vice president joe biden was being kind of immature, with a lot of the snide -- he sneered and everything