“I never thought that [Romney and McCain] couldn’t do the job.”

FILE – In this Oct. 16, 2012 file photo, Republican presidential nominee Mitt Romney, left, and President Barack Obama spar during a presidential debate at Hofstra University in Hempstead, N.Y. The first presidential debate in the 2016 race is being held on September 26 at Hofstra, chosen to pinch-hit as an alternate after Wright State University in Ohio dropped out due to concerns over security and costs. (AP Photo/Charlie Neibergall, File)
Mitt Romney and President Barack Obama spar during a presidential debate in 2012.–The Associated Press