Alec Baldwin the actor knows all about delivering powerful performances, and so does Alec the witness ... because he broke down on the stand today during the trial of his alleged stalker. Will a jury buy it? Plus, is Brooke Mueller ready to parent full-time? Her twins with Charlie Sheen are about to move in, along with her brother, Scott. Is this a dream come true for her ... or worst nightmare? And, MTV News reporter Sway Calloway joins us to help figure out why President Obama is finally losing support from African Americans ... and what it means for the Prez's legacy.