his Secret Service codename "Wrangler", is first introduced in The Hunt for Red October; he remains in office through The Cardinal of the Kremlin, and Clear and Present Danger. At the end of the last novel, he runs for reelection and is defeated. J. Robert Fowler, former governor of Ohio, who defeats the incumbent at the end of Clear and Present Danger and is in office during The Sum of All Fears. After his failure to handle the Denver crisis nearly results in nuclear war, he resigns from office at the end of the novel. Roger Durling, Fowler's vice-president, former governor of California and a Vietnam veteran with service in the 82nd Airborne Division. Durling replaces Fowler when the latter resigns, and is the President in Debt of Honor. He nearly completes Fowler's term as President and is planning a reelection campaign when he is killed along with most of the government when a Japanese jetliner is crashed into the Capitol Building. John Patrick Ryan is confirmed as Durling's new vice president at the end of Debt of Honor, and is sworn in as President when Durling is murdered on the same day. His claim to the presidency is contested by Durling's former vice president Ed Kealty in Executive Orders, but the courts eventually rule in Ryan's favor. He is mentioned during Rainbow Six, although he never appears and is depicted as President in The Bear and the Dragon. Ryan chooses not to run for re-election between the events of The Bear and The Dragon and The Teeth of The Tiger. Robert Jefferson "Robby" Jackson succeeded Ryan as President of the United States after Ryan retired (as described in The Teeth of the Tiger), with Ryan believing he could leave the country in Robby's capable hands. After serving out the remainder of Ryan's term, Robby campaigned for his own re-election. While travelling in Mississippi, however, Jackson was assassinated by a 67-year-old man who was a member of the Ku Klux Klan; Duane Farmer. Farmer was taken alive and swiftly executed for his crimes. Edward Jonathan Kealty: Durling's former vice-president, replaced by Jack Ryan after a sex scandal. When incumbent president Robby Jackson is assassinated while campaigning, Kealty is elected President in his own right, a position he holds in The Teeth of the Tiger, Dead or Alive, and Locked On. John Patrick Ryan,: Begins his campaign for re-election during the