The stated duties of the secretary of state are to supervise the United States foreign service, immigration policy, and administer the Department of State. They must also advise the president on U.S. foreign matters such as the appointment of diplomats and ambassadors. They also advise the president of the dismissal and recall of these individuals. The secretary of state can conduct negotiations, interpret, and terminate treaties relating to foreign policy. They also can participate in international conferences, organizations and agencies as a representative of the United States. The secretary of state communicates issues relating to the U.S. foreign policy to Congress and U.S. citizens. They also provide services to U.S. citizens living or traveling abroad such as providing credentials in the form of passports. Doing this, they also ensure the protection of U.S. citizens themselves, their property, and interests in foreign countries. Secretaries of state also have domestic responsibilities, entrusted in 1789, when the position was first created. These include the protection and custody of the Great Seal of the United States, and the preparation of some presidential proclamations. In the process of extraditing fugitives to or from the U.S., the secretary serves as the channel of communication between foreign governments and the federal government and the states. Most of the domestic functions of the Department of State have been transferred to other agencies. Those that remain include storage and use of the Great Seal of the United States, performance of protocol functions for the White House, and the drafting of certain proclamations. The secretary also negotiates with the individual States over the extradition of fugitives to foreign countries. Under Federal Law, the resignation of a president or of a vice president is only valid if declared in writing, in an instrument delivered to the office of the secretary of state. Accordingly, the resignations of President Richard Nixon and of Vice President Spiro Agnew were formalized in instruments delivered to Secretary of State Henry Kissinger. As the highest-ranking member of the cabinet, the secretary of state is the third-highest official of the executive branch of the federal government of the United States, after the president and vice president, and is fourth in line to succeed the presidency, coming after the vice president, the speaker of the House of Representatives, and the president pro tempore of the Senate. Six secretaries of state -- Jefferson, Madison, Monroe, John Quincy Adams, Van Buren and Buchanan -- have gone on to be elected president. Others, including Henry Clay, William Seward, James Blaine, William Jennings Bryan, John Kerry, and Hillary Clinton have been unsuccessful presidential candidates, either before or after their term of office as Secretary of State.
