Here is a random tidbit – the order of who becomes president down the line if the president dies or is removed from office:
1. Vice President
2. Speaker of the House of Representatives
3. President Pro Tempore of the Senate
4. Secretary of State
5. Secretary of the Treasury
6. Secretary of Defense
7. Attorney General
8. Secretary of the Interior
9. Secretary of Agriculture
10. Secretary of Commerce
11. Secretary of Labor
12. Secretary of Health and Human Services
13. Secretary of Housing and Urban Development
14. Secretary of Transportation
15. Secretary of Energy
16. Secretary of Education
17. Secretary of Veterans Affairs
The Secretary of Education became president in Battlestar Galactica after the planet with all of the other high office members was destroyed. Just FYI.