DANVILLE, KY —
As a senator before becoming vice president, Biden was chairman of the Foreign Relations and Judiciary committees, and he has long experience in national security issues. More recently, he was Obama's point man in arduous, ultimately unsuccessful negotiations with Republicans on steps to cut the deficit.
Both Ryan and Biden held extensive rehearsals, with stand-ins for their opponents.
Biden turned to Rep. Chris Van Hollen, D-Md., who is well-versed in Ryan's policy views from his tenure as senior Democrat on the Budget Committee.
Ryan's foil in rehearsal was former Solicitor General Ted Olson, a skillful courtroom advocate.