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/135590" allowfullscreen></iframe> Responsive Embed Code Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/135590" allowfullscreen></iframe> Retired neurosurgeon and GOP presidential candidate Dr. Ben Carson told "Fox News Sunday" that his idea of a flat tax is akin to tithing.