Rand Paul talks presidential run, GOP infighting

      |Sen. Rand Paul, R-Ky., spoke to the "CBS This Morning" co-hosts about what goes into deciding to run for president, mandatory sentencing in the U.S., the debate over National Security Agency surveillance, and GOP infighting. Paul is the author of "Government Bullies: How Everyday Americans are Being Harassed, Abused, and Imprisoned by the Feds."