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/107389" allowfullscreen></iframe> CNN's Wolf Blitzer aired a "Top 10" video of "memorable" moments from the past Republican debates -- but the reel was filled with controversial moments and gaffes.