I'm not hurting the party!

Estimated read time: 2-3 minutes

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Hillary Clinton was jolted this week by the defection of one of her longtime superdelegate supporters, a former national party chairman who urged fellow Democrats to "reject the old negative politics" and unify behind Barack Obama. "A vote to continue this process is a vote that assists John McCain," Andrew wrote. In response, Clinton told ABC's "Nightline": "I think this has been good for the Democratic Party. ... People can decide however they want to decide. That's up to them. But anyone who believes this is bad for the party I just think is not paying attention, because the level of enthusiasm to be part of this process is, from my perspective, helping us build a stronger and deeper Democratic base." ABC's Aaron Katersky is following the campaign in Indiana. Click here to hear more from Aaron.

**Obama hits late night**

There haven't been too many laughs on the campaign trail for Barack Obama lately. So Obama went on David Letterman's show last night to give viewers a glimpse into what people don't know about him. One thing he says people don't know about him -- is that he has canceled all his campaign appearances for the day the "Sex and the City" movie opens. Click here to hear the Top Ten.

**He is Iron Man**

Robert Downey Jr. didn't know much about Iron Man before starring in the movie. He remembers seeing the comic books in magazine kiosks but that's about it. He hopes the movie makes Iron Man more popular. Downey says people have been telling him that Iron Man was always a "second-tier superhero" and he says the operative word is "was." "Iron Man" opens today.