PJTV Debate Preview: Candy Crowley as Moderator & The Town Hall Format. Plus, Will Obama Get Revenge?

Tuesday night is the second presidential debate between Mitt Romney and Barack Obama. This debate will be town hall format and CNN's Candy Crowley will moderate. How will Romney and Obama fare? Will President Obama get his revenge for a debate performance that was universally seen as lackluster? Find out on this Trifecta.