Paul Ryan says he doesn't think one event -- such as the first presidential debate Wednesday night -- "is going to make or break this campaign."
The GOP vice presidential candidate calls President Barack Obama "a very gifted speaker" who's been on the national stage for several years.
Ryan also is making the point that Republican nominee Mitt Romney has never been in a one-on-one presidential debate.
Ryan tells "Fox News Sunday" that the race is close and he expects it will stay that way until Election Day on Nov. 6.
New Jersey Gov. Chris Christie says on CBS' "Face the Nation" that Romney is going to do "extraordinarily well" in the debate and that after Wednesday night, "this whole race is going to be turned upside down."