Romney's Tax Rate, South Carolina, and Special Guest Ana Marie Cox

Republican presidential hopeful Mitt Romney talks to journalists after a campaign rally in Florence, South Carolina, January 17, 2012.

Episode #2: Mitt Romney revealed this week that he pays an effective tax rate of 15% — Brian Lehrer, Anna Sale, and Todd Zwillich discuss Romney's inability to shake the "Richie Rich" image. Plus, what White voters in South Carolina are looking for, and how Newt Gingrich may be using his conservative "dog whistle" on them. And special guest Ana Marie Cox of the Guardian brings a clip to the competition.