To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Share Embed Share URL Video File Node URL Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/134508" allowfullscreen></iframe> Sen. Al Franken tells David Letterman how they are different, on Late Show with David Letterman, April 1, 2015.
