NEW YORK, NY - MAY 30: David Letterman attends the 92nd Street Y presents Senator Al Franken in conversation with David Letterman at 92nd Street Y on May 30, 2017 in New York City. (Photo by Andrew Toth/FilmMagic)
NEW YORK, NY - MAY 30: David Letterman attends the 92nd Street Y presents Senator Al Franken in conversation with David Letterman at 92nd Street Y on May 30, 2017 in New York City. (Photo by Andrew Toth/FilmMagic)