United States Code Title 3 Chapter 1 Section 19
The Speaker Of The House
It determined the order of succession.
second in line
The Chain of succession for the US Presidency is:Vice-PresidentSpeaker of the House of RepresentativesMembers of the Cabinet in order of Departmental Seniority
http://wiki.answers.com/Q/What_is_the_entire_order_of_succession_to_the_presidency_if_he_or_she_should_die"
succession
The order of succession is: (1) Vice-President, (2) Speaker of the House,(3) President Pro-tempore of the Senate,(4) Secretary of State, (5) Secretary of the Treasury.
As of now, Kamala Harris is the woman who has come closest in the presidential succession order to the office of the president of the United States. In her role as the Vice President, she is next in line to assume the presidency if the President is unable to fulfill their duties.
The first successor, the vice-president, is set by the Constitution. The rest of the list was set by an act of Congress. An amendment to the Constitution provides for a method of filling a vacancy in the vice-presidency.
The order of the Presidency is President followed by Vice President. Next in line to the presidency is the Speaker of the House.
Order of succession.
After the Secretary of Homeland Security, the next in line for the presidency is the Attorney General. If the Attorney General is unable to assume the presidency, the line of succession continues with the Secretary of State, followed by other cabinet secretaries in the order that their departments were created.