Mark McKinnon is the co-host of the hit Showtime weekly documentary series The Circus: Inside the Greatest Political Show on Earth, which provides unique access and insights into the 2016 presidential campaign. As the former lead media strategist for five winning presidential primary and general election campaigns, McKinnon reveals the strategies behind successful political campaigns.

Mark Jenkins is a field staff writer for National Geographic Magazine and writer-in-residence at the University of Wyoming. In 2009 he won the National Magazine Award for photojournalism, along with his colleague Brint Stirton, for their National Geographic story “Who Murdered The Mountain Gorillas.” Jenkins was “The Hard Way” columnist for Outside magazine for eight years. He is the author of three books: The Hard Way (Simon and Schuster, 2002), To Timbuktu (William Morrow, 1997), and Off the Map (William Morrow, 1992). He resides in Laramie, Wyoming, with his wife and two daughters.