democrats are hoping castro will repeat the performance of another former rising star. another harvard law grad raised by a single mom. a guy by the name of barack obama, the keynote in 2004. castro introduced by his twin brother, state representative and congressional candidate, not opposed, he'll be a member of the cabinet. a speech during a dnc walkthrough yesterday. >> the first lady i'm sure is going to deliver a very positive message. governor o'malley has an optimistic message as welling. of course partisanship in there. i'm at a democratic convention, but it will be optimistic. the speech is an optimistic speech. >> by the way, one question about this week's program was answered definitively this morning. the obama campaign including campaign manager jim messina says that barring a last-minute safety issue, the president, rain or shine, will accept his party's nomination on thursday outdoors at bank of america stadium right down the street here no matter what, barring a