President Elect Jack Meade wakes up in a hospital bed after being found near death on a beach. His last memory was of cruising off the Florida coast. No one believes he is the new President. Then on TV he sees a live interview with his doppelganger - he has been replaced with a dead ringer.
Used availability for Richard Doyle's Executive Action
May 1998 : UK Hardback
May 1999 : UK Paperback
July 2013 : USA, Canada, UK Kindle edition