Published on Oct 18, 2011For more watch our Election 2012 playlist: <a href="http://bit.ly/election2012videosAt">http://bit.ly/election2012videosAt</a> Republican presidential debate in Las Vegas Tuesday, candidates, including Rick Perry, Newt Gingrich and Ron Paul, hammered Herman Cain's 9-9-9 tax plan, though still praising his boldness and vision.