In this image released by CBS, President Barack Obama, left, appears with host David Letterman during a taping of "Late Show with David Letterman," on Monday, May 4, 2015, in New York. (John Filo/CBS via AP)
Featured Photo Galleries
In this image released by CBS, President Barack Obama, left, appears with host David Letterman during a taping of "Late Show with David Letterman," on Monday, May 4, 2015, in New York. (John Filo/CBS via AP)
