Is the pressure of Thursday's debate with Joe Biden getting to Paul Ryan?

On Sunday, a Ryan fundraiser at the Hyatt Regency O’Hare in Rosemont, Illinois, prominently featured a sign banning audio and video recording.
Ryan's remarks were reportedly routine, so why the sign? Perhaps Ryan was thinking about those secretly recorded video remarks that Romney made at a fundraiser in May, which caught him saying that 47 percent of Americans were "dependent on government" and saw themselves as "victims."
Then on the following morning, Ryan sounded worried about the upcoming debate.
"Because [Obama] had such a bad debate [on Oct. 3], that Joe is just going to come flying at us," Ryan told radio host Frank Beckmann. "It seems pretty clear that their new strategy is just basically to call us liars, to descend down into a mud pit, and hopefully with enough mudslinging back and forth and distortion, people get demoralized and then they can win by default."
And later in the day, Ryan just lost it, abruptly ended an interview with ABC 12 in Flint, Michigan, after an exchange on gun violence in inner cities:



