Click inside to watch the video: During his appearance on the "Late Show with David Letterman," President Obama responded to a leaked video from one of Mitt Romney's fundraising.

Obama responds to Romney's '47 percent' comment

During his appearance on the "Late Show with David Letterman," President Obama responded to a leaked video from one of Mitt Romney's fundraising events by saying, "If you want to be president, you have to work for everybody, not just for some."