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/125870" allowfullscreen></iframe> CNN anchor John Berman asked medical correspondent Dr. Sanjay Gupta Friday if just a "stroke of the pen" could "change this problem" and legalize medical marijuana.