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/56186" allowfullscreen></iframe> Responsive Embed Code <div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;"><iframe title="MRC TV video player" src="https://mrctv.org/embed/56186" frameborder="0" allowfullscreen style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;"></iframe></div> Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/56186" allowfullscreen></iframe> Good Morning America co-host Diane Sawyer on Tuesday helped promote an upcoming HBO documentary on Barack Obama and allowed producer Ed Norton to gush over the "zen" presidential campaign of the Democratic candidate.
