What to expect in the Biden-Ryan debate Inside Biden's debate preparations
Debate prep partner 'immersed himself into being Joe Biden'
Ryan's countless hours of debate prep have consisted not just of reading and studying, but also role-playing with mock debates. Former Massachusetts Lt. Gov. Kerry Healey has been standing in as moderator Martha Raddatz. Ted Olson, the former solicitor general and renowned hard-charging litigator, has been playing the role of Biden.
Ryan said Olson has "immersed himself into being Joe Biden."
"I've done lots of mock debates with Ted. He's come to Janesville (Wisconsin), we've done debates there. We've done debates in hotels around the country where I am at the time," Ryan said. "We sit around a table, we have a moderator, and he and I debate each other. He (Olson) knows my record, he's studied it, he's studied what we do in Congress, arguments that the president and vice president use to try to win their debates by default."
A Republican source familiar with Ryan's prep tells CNN that while Olson has spent a lot of time going over lines and ideas with Ryan on the road, Ryan has also participated in half a dozen or more formal mock debates -- keeping the events to the 90-minute time as if they were the real thing.
The source said that for a while Olson would "break character" and dissect an answer with Ryan, but as the debate has gotten closer Olson has stayed in character and continued to pound away at Ryan as if he were Biden.
Tobin Ryan, who has been on the campaign trail a lot with his brother, has had a behind-the-scenes look at just how seriously the Ryan team has taken his debate prep.
"They carve out 30 minutes here, 45 minutes there, if possible two hours here. And if anyone encroaches on that time, you hear from people that you can't do that. Paul's got to do his reading."
As with most vice presidential running mates, Ryan was thrust into the spotlight and given a team of people to work with. Though many of Ryan's traveling campaign staff are those he has known for a long time and is comfortable with, he isn't used to having such a large team helping decide what he says.
Tobin Ryan said there are times his brother pushes back and tells his staff he doesn't feel comfortable saying something a certain way.
"There are times when he's finally like, 'I just don't speak that way,' " Tobin Ryan said.
Did Ryan call Palin for advice on 'Joe'?
The only other person to face Biden in a vice presidential debate is Sarah Palin.
With all that meticulous debate prep, we asked if Ryan had called Palin for advice.
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"You know, I haven't. I really don't know her. I only met her once and that was about two years ago," Ryan said.
Palin famously asked Biden if she could call him Joe at the beginning of their debate. According to Palin aides at the time, she did that because she kept accidentally calling him "O'Biden" during her debate prep.
Ryan said he knows Biden pretty well because they served in Congress together for years, and he does call him Joe.
"I like Joe personally quite a bit, I just disagree with his policies," said Ryan, who also said he would only call Biden "Joe" if the vice president decides to be "casual."
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Meticulous approach comes from teenage tragedy
"Life is short, you've got to make the most of it. And so you attack it with all the enthusiasm that you can," Ryan said. "That's just kind of the way I approach life."
Seizing the moment is a lesson teenage Ryan learned from tragedy: his father's untimely death at 55.
Ryan talks often about being forced to grow up fast to help take care of his mother and ailing grandmother. But Ryan was also playing out the advice his father repeatedly impressed upon him.
Tobin Ryan recalls their father, an accomplished attorney also named Paul, telling them to "stretch your mind" and saying "you need to absorb."
"Paul grew up in an environment where if you made a comment, you know, our dad would tell us further, 'What do you mean?' Why do you mean that? Are you thinking big enough?' So I have a feeling that Paul, in that sort of discourse, he's latched in to the whole debate process."
In high school, after his father died, Ryan dived into his studies and extracurricular activities. He was in 10 clubs; he was class president; he was prom king.
He was also voted "biggest brown-noser" his senior year.
The ambition that may have won him that moniker stayed with Ryan into his early adulthood.
While living and working in Washington as a twenty-something, he sought out high-profile Republicans as bosses and mentors who were like-minded about supply-side economics and espousing what Ryan has called individualism over collectivism. Ryan became extremely close with former Housing Secretary Jack Kemp and former Education Secretary Bill Bennett when he wrote speeches and did research at their think tank, Empower America.
When asked what made him think, in his twenties, that he was qualified to go back to Janesville and run for Congress, Ryan said Kemp and Bennett helped give him the confidence, after teaching him about the importance of what he calls the "power of ideas."
"What Jack, and Bill Bennett as well, taught me was that the power of ideas is great -- that if you really believe in a cause you can make a difference in this country. I learned at a young age that if you apply yourself, you can actually make a difference."
Ryan also cultivated important Republican players back home, like Steve King.
King said he chose to back Ryan as the GOP candidate in the open congressional seat in 1998 over other more experienced candidates.
"One or two were frankly not happy with me. And one was kind of a close personal friend," recalled King, who said his decision to back Ryan shattered that friendship.
But King said he never regretted it, because from "day one" it was clear that Ryan was an "old soul."
"He gets it," King said.
Ryan also had something others considering a run for Congress in the 1st District of Wisconsin didn't: the Ryan name.
His large family has been in the area since the 19th century. His uncle founded Ryan Inc., a highly successful dirt-moving company. Until Ryan's father died, his name was on the law firm that towers over the center of town.
Luck of the Irish tie
Mitt Romney noted to CNN's Wolf Blitzer that Ryan has never debated in the kind of forum he will be in against Biden, but Ryan has had election year debates as a candidate for Congress.
We showed Ryan a photograph of one of his debates against his Democratic opponent during his first campaign, against Democrat Lydia Spotswood.
He noticed that he was wearing what he called his "lucky Irish tie," a green one that he wore on most of his election nights during his seven congressional campaigns.
Will he wear it during his debate with Biden?
"I don't know. I have to see if I can dig it up," he said with a laugh
'I'm not intimidated'
In that first congressional campaign, Spotswood was 47 years old. She was quoted then as saying she was old enough to be Ryan's mother.
Biden, 69, also is a generation older than Ryan, 42. Not to mention, as Ryan pointed out over and over, Biden has extensive experience debating on a national stage as a vice presidential candidate and presidential candidate during the 2008 Democratic primaries.
Is Ryan intimidated?
replied Ryan, "I'm actually excited about it. I came to Congress when I was 28 years old. I'm used to debating people who are older," he said, though he also noted that one of the reasons his team chose Ted Olson to play the role of Biden in mock debates is because he is "about Joe's age."
CNN's Deirdre Walsh and Melissa Dunst contributed to this report