Someone has seen the movie “Dave” too many times. :D
And "The Man in the Iron Mask", “The Great Dictator”,"To Be or Not to Be (1983)" “The Prisoner Of Zenda”, “Moon Over Parador”, "Monte Carlo (2011), and scores of other films seen too many times
Yep. The body double thing is well represented in movies. Dave came to mind first since it did involve replacing a president with a look-alike and even had the “deep state” working against the replacement president.