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/35157" allowfullscreen></iframe> Responsive Embed Code Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/35157" allowfullscreen></iframe> CNN's John Roberts caught outside the security zone for the Republican Convention on the morning of Sept. 4, dismissing Sarah Palin's complaint of liberal media bias as "convenient." He declined to elaborate as he walked away.