A while back, there was a fun thread which essentially worked like so. A poster would provide a list of Presidents. Then someone would provide an explanation for how that list of Presidents came to be, as well as some of the accomplishments of Presidents who diverged from what actually occurred IOTL. Unfortunately, I believe that thread is now over a year old, and as I am no necromancer, I'm not going to bring up that thread. Instead I'm starting a new thread with the same premise. The first list is a bit convergent, but I know at least one poster here will be interested in the scenario:
Dwight Eisenhower (R) 1953-1961
John Kennedy (D) 1961-1963*
Lyndon Johnson (D) 1963-1969
Richard Nixon (R) 1969-1974**
Gerald Ford (R) 1974-1977
Robert Kennedy (D) 1977-1985
John Kemp (R) 1985-1993
Albert Gore Jr. (D) 1993-1997
Colin Powell (R) 1997-2005
John McCain (R) 2005-present
*Assassinated
**Resigned