List the order of presidential succession.

Explain how the constitution provides for vacancies and disabilities of the president/vice president.

Tell How many VP's have become president and why each one assumed the office

Speaker of the House of Representatives

President Pro Tempore of the Senate

Secretary of State

Secretary of the Treasury

Secretary of Defense

Attorney General

Secretary of the Interior

Secretary of Agriculture

Secretary of Commerce

Secretary of Labor

Secretary of Health and Human Services

Secretary of Housing and Urban Development

Secretary of Transportation

Secretary of Energy

Secretary of Education

Secretary of Veterans Affairs

Secretary of Homeland Security