Michelle Obama stopped by to chat with David Letterman last night about the important men in her life. First up, the president. Dave asked if Barack ever comes home and complains about work. Executing perfect deadpan, the first lady said, "He is always upbeat, particularly about Congress." Yeah, right! Next, she opened about her father who had MS, explaining that he taught her the importance of unconditional love. Almost brought to tears, she said, "Don't make me cry. This isn't Oprah!" Watch highlights from Michelle's interview now.