New York Times bestselling author, and writer of some 20 books on the Secret Service, FBI and CIA, Ronald Kessler speaks with Ben Weingarten of TheBlaze Books on his new book "The First Family Detail: Secret Service Agents Reveal the Hidden Lives of the Presidents." We discuss the best and worst presidents as it relates to their treatment of Secret Service agents, some great stories about Ronald Reagan, and examine in-depth Hillary Clinton's contempt for the Secret Service and Kessler's response to the Clinton camp's attack on Kessler and other authors.