United States Department of State

The United States Department of State (DOS), or simply the State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other countries, its primary duties are advising the U.S. president on international relations, administering diplomatic missions, negotiating international treaties and agreements, protecting citizens abroad and representing the U.S. at the United Nations. The department is headquartered in the Harry S Truman Building, a few blocks from the White House, in the Foggy Bottom neighborhood of Washington, D.C.; "Foggy Bottom" is thus sometimes used as a metonym.

Established in 1789 as the first administrative arm of the U.S. executive branch, the State Department is considered among the most powerful and prestigious executive agencies. It is headed by the U.S. secretary of state, who reports directly to the U.S. president and is a member of the Cabinet. Analogous to a foreign minister, the secretary of state serves as the federal government's chief diplomat and representative abroad, and is the first Cabinet official in the order of precedence and in the presidential line of succession. The position is currently held by Marco Rubio, who was appointed by President Donald Trump and confirmed by the U.S. Senate on January 20, 2025, by a vote of 99–0.

As of 2024^[update], the State Department maintains 271 diplomatic posts worldwide, second only to the Ministry of Foreign Affairs of the People's Republic of China. It also manages the U.S. Foreign Service, provides diplomatic training to U.S. officials and military personnel, exercises partial jurisdiction over immigration, and provides various services to Americans, such as issuing passports and visas, posting foreign travel advisories, and advancing commercial ties abroad. The department administers the oldest U.S. civilian intelligence agency, the Bureau of Intelligence and Research (INR), and maintains a law enforcement arm, the Diplomatic Security Service (DSS).

The Articles of Confederation did not designate a separate executive branch of the government. Foreign affairs were delegated to the Committee of Secret Correspondence by the Congress of the Confederation in 1775, based on the Committee of Correspondence that was used by the colony of Massachusetts to communicate with the other colonies. The Committee of Secret Correspondence was renamed the Committee of Foreign Affairs in 1777. In 1781, the Department of Foreign Affairs was established as a permanent body to replace the Committee of Foreign Affairs, and the office of secretary of foreign affairs was established to lead the department.

The U.S. Constitution, drafted September 1787 and ratified the following year, gave the president responsibility for conducting the federal government's affairs with foreign states. To that end, on July 21, 1789, the First Congress approved legislation to reestablish the Department of Foreign Affairs under the new government, which President George Washington signed into law on July 27, making the department the first federal agency to be created under the new Constitution. This legislation remains the basic law of the Department of State.

In September 1789, additional legislation changed the name of the agency to the Department of State and assigned it a variety of domestic duties, including managing the United States Mint, keeping the Great Seal of the United States, and administering the census. President Washington signed the new legislation on September 15. Most of these domestic duties gradually were transferred to various federal departments and agencies established in the 19th century. However, the secretary of state still retains a few domestic responsibilities, such as serving as keeper of the Great Seal and being the officer to whom a president or vice president wishing to resign must deliver an instrument in writing declaring the decision.

Reflecting the fledgling status of the US at the time, the Department of State under Secretary Jefferson comprised only six personnel, two diplomatic posts (in London and Paris), and 10 consular posts. When Jefferson took charge of the department, one clerk oversaw The Foreign Office and another oversaw the Home Office. Congress authorized the department hire a chief clerk for each office in June 1790, but the offices were consolidated under a single clerk the following month. In 1793, responsibility over patents was transferred from the cabinet to the Department of State. The office of superintendent of patents was created to carry out this responsibility, but the office was not recognized by Congress until 1830.

In the 19th century, the U.S. State Department was responsible for administering the consular services and Diplomatic Security Service (DSS). The Department of State was composed of two primary administrative units: the diplomatic service, which staffed US legations and embassies, and the consular service, which was primarily responsible for promoting American commerce abroad and assisting distressed American sailors. Each service developed separately, but both lacked sufficient funding to provide for a career; consequently, appointments to either service fell on those with the financial means to sustain their work abroad. Combined with the common practice of appointing individuals based on politics or patronage, rather than merit, this led the department to largely favor those with political networks and wealth, rather than skill and knowledge.