It's 1963, November. Because of a sudden return of tension along the Berlin wall, JFK cancels his trip to Dallas, but his Vice President, Lyndon Johnson goes and is killed by an assassin. Some even speculate Kennedy himself, who was no friend of his VP was responsible. With no 25th Amendment, no VP would be around until the next election. While the Speaker of the House was second in command, Robert Kennedy, Attorney General becomes de facto VP. Jacqueline is getting sick of her husbands affairs and moves to a family owned place in New York City with the children but does not file for divorce due to their Catholic faith.
Starting in early 1964, President Kennedy withdraws all troops from Viet Nam and they are out by March 1965. Germany continues to be a hot spot and shooting starts across the border of East and West Germany in May 1965.
Speculate on how this plays out. Thanks!