Four weeks until the Iowa caucuses, Donald Trump is facing backlash after saying immigrants coming into the U.S. are “poisoning the blood of our country.” Then, new reporting from ProPublic says Supreme Court Justice Clarence Thomas privately pushed for a higher salary and to lift the ban on speaking fees as he was reportedly frustrated with his financial situation. Then, Stephanie Ruhle sits down with a psychologist to discuss his new book on unlocking hidden potential. Jeff Mason, Eugene Scott, Barbara McQuade, Mark Joseph Stern, Jason Johnson, Stuart Stevens, and Adam Grant join.