comedian patton oswald tweeting, this is not one of my favorite today, president obama seemed to sense some of his supporters aren't buying it. >> we will try to share the lessons that we've learned over these last eight years with the incoming president. and my hope is he makes things better. and if he does, we'll all benefit from it. >> reporter: with that, the now lame duck president left the briefing room. i'm david wright for "nightline" in new york. >>> next, what the magician david blaine did that totally freaked out john travolta and david beckham as he prepares for his latest primetime stunt. we're with him as he warms up ? when it comes to heartburn... trust the brand doctors trust. nexium 24hr is the #1 choice of doctors and pharmacists for their own frequent heartburn. for all day and all night protection... banish the burn... with nexium 24hr. just press "clean" and let roomba from irobot help with your everyday messes. roomba navigates your entire home. cleaning up pet hair and debris for up to 2 hours. floors are always clean. you and roomba, from irobot. better. togethe