President Obama told journalist Bob Woodward that when he gave a speech last year ripping into Rep. Paul Ryan's budget plan, he didn't know the Republican congressman was going to be in the audience.

"I did feel, in retrospect, had I known - we literally didn't know he was going to be there until - or I didn't know, until I arrived. I might have modified some of it so that we would leave more negotiations open, because I do think that they felt like we were trying to embarrass him," Obama said, according to audio given to ABC News. "We made a mistake."