This article provides a list of political scandals that involve officials from the government of the United States, sorted from oldest to most recent.

Scope and organization of political scandals This article is organized by presidential terms in order, older to recent, and then divided into scandals of the federal Executive, Legislative, and Judicial branches of government. Members of both parties are listed under the term of the president in office at the time the scandal took place, even though they may not be connected with the presiding president.

In this article, the term "politician" (a person who is professionally involved in politics) includes not only those elected, but also party officials, candidates for office, their staffs and appointees. Please note that every president directly selects, appoints or hires several thousand people. Each of those selects thousands more. Private citizens should only be mentioned when they are closely linked to the scandal or politician, such as Jack Abramoff. This list also does not include crimes that occur outside the politician's tenure (such as before or after their term in office) unless they specifically stem from acts made while in office and discovered later.

Scandal is defined as "loss of or damage to reputation caused by actual or apparent violation of morality or propriety". Scandals are separate from 'controversies', (which implies two differing points of view) and 'unpopularity'. Many decisions are controversial, many decisions are unpopular, that alone does not make them scandals. Breaking the law is a scandal. The finding of a court is the sole method used to determine a violation of law, but it is not the sole method of determining a scandal. Also included as scandals are politicians who resign, quit, run, or commit suicide while being investigated or threatened with investigation.

Notoriety is a major determinant of a scandal, that is, the amount of press dedicated to it. Misunderstandings, breaches of ethics, unproven crimes or cover-ups may or may not result in inclusion depending on the standing of the accused, the amount of publicity generated, and the seriousness of the crime, if any. Drunk driving may be a conviction, but is usually too minor and too common to mention unless there are multiple convictions and/or jail time.

Given the political nature of Congress in which the leading party has determining power, politicians who are rebuked, denounced, censured, admonished, condemned, suspended, reprimanded, found in contempt, found to have acted improperly, or used poor judgement are not included unless the scandal is exceptional or leads to expulsion or conviction.

Government under the Articles of Confederation (1777–1789) Thomas Conway and Horatio Gates created a movement or conspiracy, known as the Conway Cabal, to remove George Washington as Commander of the Continental Army. (1777–1778)Ferling, John. The First of Men: A Life of George Washington, p. 225 Silas Deane was appointed by the Continental Congress to be Ambassador to France. He was accused of mismanagement and treason. As he was attempting to clear himself of the charges, he died suddenly. The charges were eventually reversed or dropped. (1777)

George Washington administrations (1789–1797)

Legislative branch Senator William Blount (Democratic-Republican-TN) was expelled from the Senate for conspiring of his own accord to have Great Britain take over Spanish-controlled Louisiana and Florida in order to boost local land prices. (1797)

John Adams administration (1797–1801)

Executive branch The XYZ Affair was the French seizure of over 300 US ships and demands for bribes and apologies, which led to a Quasi-War causing the US Congress to issue the famous phrase, "Millions for defense, sir, but not one cent for tribute!". Real war was averted by treaty. (1798–1800)T. M. Iiams, Peacemaking from Vergennes to Napoleon: French Foreign Relations in the Revolutionary Era, 1774–1814 (1979); A. Duff Cooper, Talleyrand (1932); E. Wilson Lyon, "The Directory and the United States", American Historical Review, Vol. 43, No. 3 (April 1938), pp. 514–532

Legislative branch Matthew Lyon (Democratic-Republican KY) was the first Congressman recommended for censure for spitting on Ralph Griswold (Federalist-CT). The censure failed to pass. Also found guilty of violating John Adams's Alien and Sedition Acts and sentenced to four months in jail, during which he was re-elected. (1798)

Thomas Jefferson administrations (1801–1809)

Executive branch General James Wilkinson was appointed to be Governor of the upper Louisiana Purchase. He then conspired with Spain to get Kentucky to secede from the Union in order to allow shipping on the Mississippi to reach New Orleans. (1787–1811) Aaron Burr and the New Empire (Southwest) Burr conspiracy (1804–1807) – Burr allegedly tried to seize a large part of the Louisiana Purchase and establish his own country. He was arrested for treason, but was acquitted for lack of evidence. (1807)"Aaron Burr and the Definition of Treason (1783–1815)". American Eras. 8 vols. Gale Research, 1997–1998. Student Resource Center. Thomson Gale. October 24, 2005 Aaron Burr dueled with Alexander Hamilton. Hamilton died of wounds received during the duel. (1804)"Burr's Conspiracy, 1805–1807". DISCovering U.S. History. Online Edition. Gale, 2003. Student Resource Center. Thomson Gale. October 24, 2005.

Judicial branch Samuel Chase, the Supreme Court Justice appointed by George Washington, was impeached for political favoritism and acquitted in 1805.Jerry W. Knudson, "The Jeffersonian Assault on the Federalist Judiciary, 1802–1805: Political Forces and Press Reaction", American Journal of Legal History 1970 14(1): 55–75; Richard Ellis, "The Impeachment of Samuel Chase", in American Political Trials, ed. by Michael R. Belknap (1994) pp. 57–76, quote on p. 64. John Pickering, a federal judge appointed by George Washington, was impeached and convicted in absentia by the US Senate for drunkenness and use of profanity on the bench. (1804) Benjamin Sebastian US Court of Appeals Judge, was accused in the Spanish Conspiracy, of being a paid agent of Spain. He resigned in disgrace. (1806)

James Monroe administrations (1817–1825) Legislative branch Corrupt Bargain was a supposed bargain by John Quincy Adams with Henry Clay. (1824) In the United States presidential election of 1824, in which John Quincy Adams was elected by the House of Representatives after Andrew Jackson won the most popular and electoral votes but failed to receive a majority. The matter was decided by the House of Representatives.

Andrew Jackson administrations (1829–1837) see Andrew Jackson administration controversies

Executive branch Samuel Swartwout was appointed by President Andrew Jackson to the New York City Collector's Office. At the end of his term he had embezzled $1.225 million in customs receipts and used the money to purchase land. He fled to Europe to avoid prosecution.Robert Remini, Andrew Jackson and the course of American democracy, 1833–1845 (1984) p. 449 Margaret O'Neill Eaton, the wife of Secretary of War John H. Eaton, was a central figure in the Petticoat Affair which involved accusations that she had engaged in an extramarital affair, and her social ostracism by the wives of other Cabinet members led by Floride Calhoun, the wife of Vice President John C. Calhoun.

Legislative branch Robert Potter North Carolina Congressman, resigned from Congress after castrating two men he believed were having an affair with his wife. (1831) Later, in North Carolina, he was expelled from its legislature for cheating at cards or for pulling a gun and a knife during a card game. (1835)

John Tyler administration (1841–1845)

Legislative branch Charles F. Mitchell (R-NY) US Representative from the 33rd District, was convicted of forgery, sentenced to one year in prison and fined, though he was paroled early due to poor health. (1841)

Zachary Taylor administration (1849–1850)

Executive branch George W. Crawford (Whig-GA), Secretary of War in the Cabinet of President Zachary Taylor (Whig), was the center of the Galphin Affair land scandal with the help of Reverdy Johnson (Whig) Attorney General and William M. Meredith (Whig) Secretary of the Treasury, in which Crawford defrauded the federal government of $191,353. (1849)Samuel Eliot Morison, The Oxford History of the American People (1965) p. 573

Franklin Pierce administration (1853–1857)

Legislative branch Preston Brooks (D-SC) US Representative and fervent advocate of slavery, beat abolitionist Senator Charles Sumner (R-MA), until his cane broke, leaving him bleeding and unconscious on the floor of the House of Representatives. (1856)

James Buchanan administration (1857–1861) Executive branch

President Buchanan called out a detachment of U.S. Marines from the Washington Navy Yard, the only federal troops in the immediate area: 81 privates, 11 sergeants, 13 corporals, and 1 bugler, armed with seven howitzers. The Marines left for Harper's Ferry on the regular 3:30 train, arriving about 10 PM. Israel Greene was in charge. see John Brown's raid on Harpers Ferry

Legislative branch US Representative Orsamus B. Matteson (R-NY), faced an allegation of having defamed the character of the US House by declaring that a majority of its members were 'purchasable'. He himself was then accused of accepting money in exchange for supporting a Minnesota land bill. The House recommendation that he be expelled was tabled and a recommendation of censure was brought up, but before it could be passed, Matteson resigned. (1857)

Abraham Lincoln (R) administration (1861–1865)

Executive branch Simon Cameron (R), Lincoln's Secretary of War, resigned in 1862 due to corruption charges. His behavior was so notorious that Congressman Thaddeus Stevens, when discussing Cameron's honesty with Lincoln, told him that "I don't think that he would steal a red hot stove." When Cameron demanded Stevens retract this statement, Stevens told Lincoln "I believe I told you he would not steal a red-hot stove. I will now take that back." (1860–1862) Caleb Lyon (R) was appointed Governor of the Idaho Territory. An audit revealed that he had embezzled $46,418 in federal funds intended for the Nez Perce Indians. He died before prosecution. (1866)

Legislative branch Jesse D. Bright (D-IN) US Senator and Pro Tem President of the US Senate, was known as a leading southern sympathizer. When it was discovered that he had written a letter to President Jefferson Davis aiding him in his pursuit of firearms for the Confederacy, it was taken to be an act of treason. Bright was then expelled from the Senate. (1861) James F. Simmons (R-RI) US Senator had confirmed corruption charges against him reported by the Senate Judiciary Committee and the charges were then referred to the full Senate for action on July 14, 1862. The Senate adjourned three days later without acting. Before it could reconvene, Simmons resigned on September 5, 1862. Lovell Harrison Rousseau (R-KY) US Representative assaulted Iowa Representative Josiah Bushnell Grinnell on June 14, 1866, with his iron handled cane until it broke. He was reprimanded by the House of Representatives, and resigned, but was elected again to fill his own vacancy. (1866)

Andrew Johnson (D) administration (1865–1869)

Executive branch President Andrew Johnson (D/National Union) was impeached for violating the Tenure of Office Act. He was acquitted by one vote. (1868)"Andrew Johnson Trial: The Consciences of Seven Republicans Save Johnson".

Ulysses S. Grant (R) administrations (1869–1877)

Executive branch William Belknap (R) United States Secretary of War, resigned just before he was impeached by the United States House of Representatives for bribery. (1876)Hinds' Precedents, Volume III, Chapter LXXVII, section 2444, pp. 903–904.