Has an incumbent president lost reelection?

Related questions

1. Will Republicans primary Trump in 2020?
2. Can an incumbent president be challenged in a primary?
3. Does the vice president live in the White House?
4. What does it mean to caucus for a candidate?
5. Does an incumbent president have to run in the primaries?
6. Has an incumbent president ever lost a primary?
7. What is the 2020 primary schedule?
8. How long is Donald Trump's presidency?
9. Can a vice president become president?
10. What race is Kellyanne Conway's husband?

Tags

1. #world
2. #election
3. #there
4. #voters
5. #second
6. #president
7. #presidents
8. #denied
9. #republican
10. #terms
11. #recent
12. #george
13. #since
14. #democrat
15. #nearly
16. #dozen
17. #clinton
18. #three