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Impeachment explainer

What is impeachment?

Impeachment is the process by which the U.S. House of Representatives officially charges a federal official with legal wrongdoing, specifically “treason, bribery, or other high crimes and misdemeanors.” All federal government officials, including the president, vice president, Supreme Court justices, cabinet members, and federal judges, can be impeached.

When can a federal official be impeached?

Alexander Hamilton wrote in the Federalist Papers No. 65 on March 7, 1788, that the grounds for impeachment “are those offenses which proceed from the misconduct of public men, or, in other words, from the abuse or violation of some public trust,” adding that impeachment was “designed as a method of NATIONAL INQUEST into the conduct of public men.” [4] [8] [9]

Thus, the U.S. Constitution Article II, Section 4 states:

The President, Vice President and all civil Officers of the United States, shall be removed from Office on Impeachment for, and Conviction of, Treason, Bribery, or other high Crimes and Misdemeanors.

As Charlie Savage, Washington correspondent for The New York Times, explains:

The term “high crimes and misdemeanors” came out of the British common law tradition: it was the sort of offense that Parliament cited in removing crown officials for centuries. Essentially, it means an abuse of power by a high-level public official. This does not necessarily have to be a violation of an ordinary criminal statute. [4]

As outlined in the “All impeached federal officials” section below, officials have been impeached for a variety of offenses, from being intoxicated on the bench and perjury before a federal grand jury to accepting bribes and sexual wrongdoings. The phrase “high crimes and misdemeanors” allows for fairly wide interpretation.

What happens in the U.S. House of Representatives?

According to Article I, Section 2, Clause 5 of the Constitution: “The House of Representatives 
 shall have the sole Power of Impeachment.” The term “impeachment” refers to formal charges being filed (similar to an indictment). The person being charged does not have to leave office after being impeached by the House. Instead, they will go to trial in the Senate. [3] [5] [10]

According to law professor Stephen Vladeck at the University of Texas:

The Constitution actually says nothing about the process the House is supposed to follow when it comes to impeachment inquiries, other than that it eventually has to approve articles of impeachment before sending the matter to the Senate. [11]

Because there is no constitutionally prescribed path to impeachment, the process in the House can vary and may begin with the House Judiciary Committee investigating and recommending articles of impeachment, which are formal written allegations of “treason, bribery, or other high crimes and misdemeanors” that the Committee believes warrant a trial. The House could form a special panel to investigate or skip the committee step altogether. Or, individual voting members of the House may bring articles of impeachment. Non-voting members of the House (those representing U.S. territories and the District of Columbia) cannot bring forward articles of impeachment. [4] [5] [10]

Regardless of which path is taken, the result is the articles of impeachment. The House then votes on the articles. If at least one article gets a simple majority approval, the federal official has been impeached (meaning formally charged with misconduct).[4] [5]

What happens in the U.S. Senate?

After the House adopts the articles of impeachment, the process moves to the U.S. Senate. According to Article I, Section 3, Clauses 6 and 7 of the Constitution:

The Senate shall have the sole Power to try all Impeachments. When sitting for that Purpose, they shall be on Oath or Affirmation. When the President of the United States is tried, the Chief Justice shall preside: And no Person shall be convicted without the Concurrence of two thirds of the Members present.

Judgment in Cases of Impeachment shall not extend further than to removal from Office, and disqualification to hold and enjoy any Office of honor, Trust or Profit under the United States: but the Party convicted shall nevertheless be liable and subject to Indictment, Trial, Judgment and Punishment, according to Law.

U.S. Representatives from the House act as prosecutors, called “managers.” The impeached official may choose their own defense counsel. [4] [5] [7] [9] [10]

Much like in the House, no set rules for the Senate trial exist. Instead, a resolution is passed in the Senate laying out trial procedure before the trial begins. If the official is not convicted, they remain impeached but are considered acquitted and are not removed from office. [4]

If two-thirds of the Senate, acting as the jury, find the official guilty of any of the articles of impeachment, the official is removed from office without possibility of appeal. If a U.S. president is convicted, the vice president becomes president in accordance with the rules of presidential succession. The Senate may also disqualify the impeached president from ever holding public office again with a simple majority vote. [3] [4] [5] [10]

Who has been impeached?

The House of Representatives has impeached 21 officials since 1797:

  • one senator
  • one associate justice of the U.S. Supreme Court
  • 14 federal judges
  • one secretary of war
  • one homeland security secretary
  • three presidents

The Senate has convicted eight of the 21 officials impeached by the House:

  • seven district court judges
  • one U.S. Commerce Court associate judge

Four impeached officials—one senator and three district court judges—resigned or were otherwise expelled from their posts before being tried by the Senate. And, infamously, Pres. Richard Nixon resigned before he could be impeached.

Supreme Court justice

Only one Supreme Court justice has been impeached: Associate Justice Samuel Chase in 1804 for arbitrary and oppressive conduct of trials. He was acquitted in March 1805 after a Senate trial. [28]

Britannica Editors note:

During the struggle between the Federalist and Jeffersonian Republican parties, Chase, a Federalist, conducted his circuit court in a partisan manner. The House of Representatives, encouraged by [Pres. Thomas] Jefferson, charged Chase with improper actions in treason and sedition trials and with a political address to a grand jury. In March 1805 the Senate, acting as trial court, found him not guilty. His acquittal, by establishing the principle that federal judges could be removed only for indictable criminal acts, clarified the constitutional provision (Article III, section 1) that judges shall hold office during good behavior. Some scholars believe that if Chase had been found guilty, the Jefferson administration would have proceeded against other Federalist justices, particularly Chief Justice John Marshall, a leading opponent of Jefferson. [31]

Cabinet members

Only two U.S. cabinet members have been impeached neither were found guilty by the Senate: Alejandro Mayorkas (2024) and William W. Belknap (1876).

Homeland Security Secretary Alejandro Mayorkas (2024)

House Republicans voted to impeach Homeland Security Secretary Alejandro Mayorkas in a 214–213 vote on February 13, 2024. Mayorkas was impeached on two articles: “willful and systemic refusal to comply with the law,” specifically immigration law, which contributed to the “border catastrophe,” according to House Republicans, and “breach of public trust” for not “faithfully discharging” his duties. [23]

The House of Representatives was scheduled to deliver the articles of impeachment against Mayorkas to the U.S. Senate on April 10, 2024, but it delayed the delivery to April 16 due to concerns the Senate would not commit to a trial. On April 17, 2024, the Senate voted 51–48 (with an additional “present” vote) along party lines to dismiss the first article of impeachment because a majority believed it did not meet the constitutional requirement of “high crimes and misdemeanors.” A 51–49 vote dismissed the second article along party lines on the same grounds. The dismissal marks the first time the Senate did not hold a trial for articles of impeachment brought by the House. [24] [25] [26]

U.S. Secretary of War William Worth Belknap (1876)

As secretary of war under Pres. Ulysses S. Grant, Belknap was accused of taking bribes. As Britannica editors explain:

On March 2, 1876, Belknap abruptly resigned his cabinet position amid rumors of misconduct. Observers had noted that Belknap, who received a relatively modest government salary, hosted lavish parties that were impressive even by the standards of the Gilded Age. After his resignation, the U.S. House of Representatives began impeachment proceedings against Belknap for allegedly operating a kickback scheme at Fort Sill, Indian Territory (now Oklahoma). Belknap was accused of granting Caleb Marsh, a New York businessman, and an associate the exclusive right to operate a trading post at Fort Sill in exchange for quarterly payments. [32]

In a unanimous vote, the House impeached Belknap on five articles of impeachment, accusing him of “criminally disregarding his duty as Secretary of War, and basely prostituting his high office to his lust for private gain.” Belknap protested that he could not be tried in the Senate because he had already resigned his office. The Senate debated jurisdiction to try Belknap on the charges and then went ahead with a trial. While a majority (37 of 62 senators) voted to convict on all five charges, Belknap was acquitted because the vote was just short of the required two-thirds majority. Of the 25 senators who voted to acquit, 23 did so because they believed the Senate no longer had the jurisdiction to punish Belknap, not that they believed he was innocent of the charges. [32]

U.S. presidents

Three U.S. presidents have been impeached: Donald Trump (2019 and 2021), Bill Clinton (1998), and Andrew Johnson (1868). But no U.S. president has been convicted and none have been removed from office. Pres. Richard Nixon resigned in 1974 rather than face almost certain impeachment and removal from office for his involvement in the Watergate scandal. [3] [4] [5] [13] [14] [15] [17] [3]

President Donald Trump (2019 and 2021)

Pres. Donald Trump is the only U.S. official to be impeached twice.

Trump was impeached for the first time on December 18, 2019. The articles of impeachment charged “abuse of power” for soliciting Ukraine to interfere in the 2020 presidential election to Trump’s advantage and “obstruction of Congress” for defying subpoenas issued by Congress. Trump’s January 16–February 5, 2020, first impeachment trial resulted in acquittal by the Senate. Votes on both articles were along party lines, though Mitt Romney (R-UT) voted to convict on Article I (“abuse of power”) and acquit on Article II (“obstruction of Congress”). [6] [15]

Trump was impeached for a second time on January 13, 2021—one week before he left office in his first term—and was impeached on one article: “incitement of insurrection” for the January 6, 2021, attack on the U.S. Capitol in which, according to Britannica editor Brian Duignan, “a mob unlawfully breached the Capitol, injured law enforcement personnel, menaced Members of Congress and the Vice Pres., interfered with the Joint Session’s solemn constitutional duty to certify election results, and engaged in violent, deadly, destructive, and seditious acts.” Trump’s February 9–13, 2021, second impeachment trial resulted in a second acquittal by the Senate. The vote was again mostly along party lines, though seven Republican senators voted to convict Trump. [16] [17] [18] [19] [20] [21] [22] [30]

President Bill Clinton (1998)

Pres. Bill Clinton was impeached on December 19, 1998, for two articles: lying under oath to a federal grand jury and obstruction of justice. The charges related to whether Clinton coerced Monica Lewinsky, then a 24-year-old White House intern, to state falsely under oath that she and Clinton had not had an affair. [33]

Britannica editors explain:

The details of the relationship [between Clinton and Lewinsky] were first made public in January 1998 by the Drudge Report. Clinton repeatedly and publicly denied that the affair had taken place. His compelled testimony, which appeared evasive and disingenuous even to Clinton’s supporters (he responded to one question by stating, “It depends on what the meaning of the word is is”), prompted renewed criticism of Clinton’s character from conservatives and liberals alike. After conclusive evidence of the affair came to light, Clinton apologized to his family and to the American public. [33]

Nonetheless, Clinton was acquitted of the charges by the Senate at the conclusion of the January 7–February 12, 1999, trial. [33]

President Andrew Johnson (1868)

Pres. Andrew Johnson was impeached on February 24, 1868. The impeachment was the result of an extended conflict with Congress, which passed Restoration policies (including the Freedmen’s Bureau bill extension, the Civil Rights Act of 1866, the Fourteenth Amendment, and the first of the Reconstruction Acts) after the Civil War despite Johnson’s vetoes and objections. The Tenure of Office Act was passed the same day as the Reconstruction Act, and gave Congress means to act against Johnson. [34] [35]

The Tenure of Office Act, according to Britannica Editors, “forbade the chief executive from removing without the Senate’s concurrence certain federal officers whose appointments had originally been made by and with the advice and consent of the Senate.” Nonetheless, Johnson fired Secretary of War Edwin M. Stanton—a staunch opponent of Johnson—on February 21, 1868 (after having suspended Stanton on August 12 the year before), to test the constitutionality of the new law. [34] [35] [36]

The next day, the House of Representatives responded with 11 articles of impeachment, most of which focused on Johnson’s violation of the Tenure of Office Act, though Britannica Editors note that the president was also accused of bringing “into disgrace, ridicule, hatred, contempt, and reproach the Congress of the United States.” On February 24, the House voted 126 to 47 to impeach Johnson of high crimes and misdemeanors and referred the matter to the Senate for trial. Johnson was acquitted on May 26 in the Senate, after votes fell just one short of the required two-thirds majority. [34] [35]

All impeached federal officials

1 of 24
federal official House impeachment Senate trial
Source: Library of Congress, “Federal Impeachment” guides.loc.gov (accessed April 30, 2026)
1. William Blount, U.S. Senator (TN) July 7, 1797: Conspiring to assist in Great Britain’s attempt to seize Spanish-controlled territories in modern-day Florida and Louisiana December 17, 1798–January 14, 1799: Charges dismissed for want of jurisdiction. Blount was expelled from the Senate before trial
2. John Pickering, U.S. District Court Judge, New Hampshire March 2, 1803: Intoxication on the bench and unlawful handling of property claims March 3, 1803–March 12, 1804: Found guilty and removed from office
3. Samuel Chase, U.S. Supreme Court Associate Justice March 12, 1804: Arbitrary and oppressive conduct of trials December 7, 1804–March 1, 1805: Acquitted
4. James H. Peck, U.S. District Court Judge, District of Missouri April 24, 1830: Abuse of the contempt power April 26, 1830–January 31, 1831: Acquitted
5. West H. Humphreys, U.S. District Court Judge, Western District of Tennessee May 6, 1862: Refusing to hold court and waging war against the U.S. government June 9–26 1862: Found guilty, removed from office, and disqualified from holding future office
6. Andrew Johnson, 17th Pres. of the United States February 24, 1868: Violating the Tenure of Office Act by removing Secretary of War Edwin Stanton from office February 25–May 26, 1868: Acquitted
7. Mark H. Delahay, U.S. District Court Judge, Kansas February 28, 1873; Intoxicated on the bench No trial held: Resigned prior to trial
8. William W. Belknap, U.S. Secretary of War March 2, 1876: Criminal disregard for his office and accepting payments in exchange for making official appointments March 3–August 1, 1876: Acquitted
9. Charles Swayne, U.S. District Court Judge, Northern District of Florida December 13, 1904: Abuse of contempt power and other misuses of office December 14, 1904–February 27, 1905: Acquitted
10. Robert W. Archbald, U.S. Commerce Court Associate Judge July 11, 1912: Improper business relationships with litigants July 13, 1912–January 13, 1913: Found guilty, removed from office, and disqualified from holding future office
11. George W. English, U.S. District Court Judge, Eastern District of Illinois April 1, 1926: Abuse of power April 23–December 13, 1926: Resigned on November 4, 1926, and the trial was dismissed on December 13, 1926
12. Harold Louderback, U.S. District Court Judge, Northern District of California February 24, 1933: Favoritism in the appointment of bankruptcy receivers May 15–24, 1933: Acquitted
13. Halsted L. Ritter, U.S. District Court Judge, Southern District of Florida March 2, 1936: Favoritism in the appointment of bankruptcy receivers and practicing law as a sitting judge March 10–April 17, 1936: Found guilty and removed from office
14. Harry E. Claiborne, U.S. District Court Judge, Nevada July 22, 1986: Income tax evasion and remaining on the bench following a criminal conviction October 7–9, 1986: Found guilty and removed from office
15. Alcee L. Hastings, U.S. District Court Judge, Southern District of Florida August 3, 1988: Perjury and conspiring to solicit a bribe October 18–20, 1989: Found guilty and removed from office
16. Walter L. Nixon, U.S. District Court Judge, Southern District of Mississippi May 10, 1989: Perjury before a federal grand jury November 1–3, 1989: Found guilty and removed from office
17. William J. Clinton, 42nd Pres. of the United States December 19, 1998: Lying under oath to a federal grand jury and obstruction of justice January 7–February 12, 1999: Acquitted
18. Samuel B. Kent, U.S. District Court Judge, Southern District of Texas June 19, 2009: Sexual assault, obstructing and impeding an official proceeding, and making false and misleading statements June 24–July 22, 2009: Resigned before completion of trial
19. G. Thomas Porteous, Jr., U.S. District Court Judge, Eastern District of Louisiana March 11, 2010: Accepting bribes and making false statements under penalty of perjury December 7–8, 2010: Found guilty, removed from office, and disqualified from holding future office
20. Donald Trump, 45th Pres. of the United States December 18, 2019: Abuse of power and obstruction of Congress January 16–February 5, 2020: Acquitted
21. Donald Trump, 45th Pres. of the United States January 13, 2021: Incitement of insurrection February 9–13, 2021: Acquitted
22. Alejandro Mayorkas, Homeland Security Secretary February 13, 2024: Refusal to comply with federal immigration laws April 17, 2024: Articles dismissed by Senate without trial

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Discussion questions

  1. Should federal officials who have been impeached be allowed to hold public office? Why or why not? What if they were acquitted in the Senate?
  2. In what ways does an impeachment differ from a criminal trial? Explain your answers.
  3. What are some examples of crimes or actions for which you think a federal official should be impeached? Explain your answer.
  4. Do you think the impeachment process is set up in a way that protects the best interests of the American public? Why or why not?
  5. What questions do you have after reading the article above? Where might you find answers?
  6. What was the most interesting thing you learned from this article?

Sources

  1. Encyclopaedia Britannica, “Impeachment” britannica.com (accessed October 11, 2024)
  2. U.S. Senate, “Impeachment” senate.gov (accessed November 7, 2019)
  3. Pete Williams, “What Is Impeachment and How Does It Work?” (September 25, 2019), nbcnews.com
  4. Charlie Savage, “How the Impeachment Process Works” (September 24, 2019), nytimes.com
  5. Brian Pascus, “Pelosi Launches Impeachment Inquiry into Trump: What Is It and What Happens Next?” (September 24, 2019), cbsnews.com
  6. Nicholas Fandos, “Nancy Pelosi Announces Formal Impeachment Inquiry of Trump” (October 4, 2019), nytimes.com
  7. Legal Information Institute, “U.S. Constitution” law.cornell.edu (accessed September 25, 2019)
  8. Alexander Hamilton, “The Federalist Papers: No. 65” (March 7, 1788), avalon.law.yale.edu (accessed September 25, 2019)
  9. Nicole Goodkind, “Impeachment Explained: Donald Trump, Nancy Pelosi and What Happens Next” (September 25, 2019), newsweek.com
  10. Andrew O’Reilly, “The Impeachment Inquiry: How Does Removing a President Work?” (September 24, 2019), foxnews.com
  11. Brian Naylor, “Who Sets the Rules? When Is It Real? And Other Big Questions on Impeachment” (October 9, 2019), npr.org
  12. U.S. State House of Representatives History, Art, & Archives, “List of Individuals Impeached by the House of Representatives” history.house.gov (accessed September 25, 2019)
  13. Nicholas Fandos and Michael D. Shear, “Trump Impeached for Abuse of Power and Obstruction of Congress” (December 19, 2019), nytimes.com
  14. Elise Viebeck, Rachael Bade, and Seung Min Kim, “House Delivers Historic Impeachment Case Against Trump to Senate” (January 15, 2020), washingtonpost.com
  15. Peter Baker, “Impeachment Live Updates: Senate Acquits Trump, Ending Historic Trial” (February 5, 2020), nytimes.com
  16. The Hill Staff, “Read: Lawmakers’ Drafted Article of Impeachment Against Trump” (January 11, 2021), thehill.com
  17. Zachary B. Wolf, “The House Just Voted to Impeach President Trump. Here’s What Happens Next” (January 13, 2021), cnn.com
  18. Mike Lillis and Scott Wong, “House Formally Sends Impeachment to Senate, Putting Trump on Trial for Capitol Riot” (January 25, 2021), thehill.com
  19. Amy Howe, “Roberts Will Not Preside Over Impeachment Trial” (January 25, 2021), scotusblog.com
  20. Mary Clare Jalonick, “Explainer: What’s Ahead as Trump Impeachment Trial Begins” (February 9, 2021), apnews.com
  21. Jeremy Herb, Manu Raju, and Lauren Fox, “Senators Vote That Impeachment Trial Is Constitutional Following House Managers and Trump Lawyer Debate” (February 9, 2021), cnn.com
  22. Jordain Carney, “Senate Votes 57-43 for Trump Acquittal” (February 13, 2021), thehill.com
  23. Scott Wong, “Republicans Impeach Alejandro Mayorkas Over the Border After Failing to Last Week” (February 13, 2024), nbcnews.com
  24. Ximena Bustillo, “Senate to Begin Mayorkas Impeachment Trial This Week. Here’s What You Need to Know” (April 9, 2024), npr.org
  25. Kaia Hubbard, “House Republicans Postpone Sending Mayorkas Impeachment Articles to Senate” (April 9, 2024), cbsnews.com
  26. Luke Broadwater, “Senate Dismisses Impeachment Charges Against Mayorkas without a Trial” (April 18, 2024), nytimes.com
  27. Ryan Nobles, Alexandra Marquez, and ZoĂ« Richards, “AOC Files Articles of Impeachment Against Supreme Court Justices Clarence Thomas and Samuel Alito” (July 1, 2024), nbcnews.com
  28. Library of Congress, “Federal Impeachment” guides.loc.gov (accessed April 30, 2026)
  29. U.S. House of Representatives History, Art, & Archives, “Impeachment,” history.house.gov (accessed November 7, 2019)
  30. Brian Duignan, “January 6 U.S. Capitol Attack” britannica.com (accessed November 10, 2026)
  31. Britannica Editors, “Samuel Chase” britannica.com (accessed November 10, 2026)
  32. Britannica Editors, “William Worth Belknap” britannica.com (accessed November 10, 2026)
  33. Britannica Editors, “Bill Clinton” britannica.com (accessed November 10, 2026)
  34. Britannica Editors, “Andrew Johnson” britannica.com (accessed November 10, 2026)
  35. U.S. Senate, “Impeachment Trial of President Andrew Johnson, 1868” senate.gov (accessed November 10, 2026)
  36. The American Presidency Project, “Andrew Johnson 17th President of the United States: 1865 - 1869 Message to the Senate on the Removal of Edwin M. Stanton as Secretary of War” presidency.ucsb.edu (accessed November 10, 2026)