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/108772" allowfullscreen></iframe> Responsive Embed Code Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/108772" allowfullscreen></iframe> As he interviewed Iowa Republican Governor Terry Branstad on Monday's The Early Show on CBS, substitute co-anchor Bob Schieffer naively wondered why someone does not act to put an end to negative ads in political campaigns.