Presidential Succession: Did you know that 9 vice presidents have became president due to death, resignation, or removal? This was made possible by the 25th ammendment which states that a vice president becomes acting president if the vice president and president's cabinet determine that the president is disabled.
Order of Succession
1 Vice President of the United States
2 Speaker of the House
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
-- Acting Secretary of Commerce
10 Secretary of Labor
11 Secretary of Health and Human Services
12 Secretary of Housing and Urban Development
13 Secretary of Transportation
14 Secretary of Energy
15 Secretary of Education
16 Secretary of Veterans Affairs