The video that runs about an hour is available here. The C-SPAN intro is not completely accurate so you might want to skip the first 30 seconds. I would have rewritten it as this:
John Lott talked about his book, Dumbing Down the Courts: How Politics Keeps the Smartest Judges Off the Bench, in which he argues that partisan politicians don’t like to confirm smart judges from the other political party because they’re afraid that smart judges have the ability to influence other judges. In his book, he says that judges who graduated in the top 10 percent of their law classes have much longer confirmation processes than judges who don’t. He spoke at an event hosted by the Orange County Federalist Society.