i'll talk exclusively to jesse tyler ferguson, also clay aiken and the woman who may be new york city's next mayor. plus the angriest man in america has a lot to say about this. the return of one of my favorite guests, lewis black. >> you got so angry tonight you actually shook your microphone off. >> did i really? >> i've never seen that happen before. it actually blew off you. >>> also only in america, what i've learned about passions on both sides of this issue. this is piers morgan tonight. >>> good evening. we begin with a big story. tonight president obama comes out in favor of gay marriage. listen to what he told abc news' robin roberts. >> at a certain point i've just concluded that for me personally, it is important for me to go ahead and affirm that i think same-sex couples should be able to get married. >> contrast that with what mitt romney said afterwards. >> my view is that marriage itself is a relationship between a man and a woman and that's my own preference. i know other people have differing views. this is a very tender and sensitive topic, as are many social issues.