Most Americans have heard of impeachment, but very few can explain how it actually works or why it almost never removes a sitting president. Of the four presidents who have faced impeachment proceedings in U.S. history, none have been removed from office by the Senate. That single fact is what makes impeachment one of the most misunderstood powers in the Constitution.
I have spent weeks going through the original constitutional text, the House and Senate rules, and the actual record of every presidential impeachment case. This guide walks through the process step by step and, more importantly, explains why impeachment rarely results in removal. By the end, you will understand both the mechanics and the political reality of how impeachment works in 2026.
Table of Contents
What Is Impeachment?
Impeachment is the formal process of bringing charges against a federal official for serious misconduct. It is defined in Article II, Section 4 of the U.S. Constitution, which states that “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.”
It is important to understand that impeachment is not a conviction and not a removal. It is closer to an indictment in a criminal case. The House of Representatives acts as the grand jury that decides whether charges should be brought, and the Senate acts as the court that decides whether the official is guilty and should be removed.
How Impeachment Actually Works Step by Step
The impeachment process has five clear stages. Each stage requires a different group within Congress to take action before moving to the next one.
Step 1: Investigation and Inquiry in the House
The process usually begins with one or more House committees investigating the official’s conduct. In modern practice, committees like Judiciary, Oversight, or Intelligence gather evidence, hold hearings, and issue subpoenas. This stage can take weeks or months. The 1974 Nixon inquiry ran for several months before the House formally opened proceedings.
Step 2: Articles of Impeachment Are Drafted
If the investigation turns up grounds for charges, the House Judiciary Committee drafts formal articles of impeachment. Each article is a separate charge, similar to separate counts in a criminal indictment. Presidents Andrew Johnson (1868), Richard Nixon (proposed in 1974), Bill Clinton (1998), and Donald Trump (2019 and 2021) all faced multiple articles during their respective proceedings.
Step 3: The House Votes by Simple Majority
The full House of Representatives debates and votes on each article. A simple majority of those present and voting is enough to pass an article. Once a single article passes, the official is officially “impeached.” Note that the threshold is much lower than removal; in 2019 and 2021 the House impeached Trump with votes along strict party lines.
Step 4: The Senate Holds the Trial
The case then moves to the Senate, which holds a trial. House members serve as prosecutors (called managers), and the impeached official has defense counsel. For a presidential impeachment, the Chief Justice of the United States presides over the trial. Senators act as the jury. A two-thirds quorum is required to proceed.
Step 5: The Senate Votes (Two-Thirds Required for Conviction)
After the trial, the Senate votes on each article. Conviction requires a two-thirds supermajority of senators present. If conviction passes, the official is immediately removed from office. The Senate may also hold a separate vote to disqualify the individual from holding future federal office, which only requires a simple majority.
Who Can Be Impeached?
The Constitution applies impeachment to the President, Vice President, and “all civil Officers of the United States.” This phrase has been interpreted broadly over time. In practice, federal judges are the most frequently impeached officials. As of 2026, 15 federal judges have been impeached, with 8 convicted and removed.
Members of Congress are not subject to impeachment. Senators and Representatives can be expelled by a two-thirds vote of their own chamber, but they cannot be impeached under the Constitution. Cabinet secretaries can be impeached because they are civil officers appointed by the President.
What Are “High Crimes and Misdemeanors”?
The phrase “high Crimes and Misdemeanors” sounds like a legal term, but it is not defined anywhere in the Constitution. The framers deliberately left it vague so that Congress could respond to abuses of power that did not fit neatly into existing criminal statutes. In practice, it covers a wide range of conduct.
Historically, charges have included abuse of power, obstruction of justice, betrayal of public trust, bribery, perjury, and serious violations of the Constitution. Gerald Ford famously defined it as “whatever a majority of the House of Representatives considers it to be at a given moment in history,” and that captures the political reality of the standard.
Critics on both sides argue the phrase has been stretched in modern cases. Supporters say that is exactly the point: a President cannot be left in office when the constitutional system is being subverted by their own conduct.
Why Impeachment Rarely Removes a President
Out of four presidential impeachments, zero have resulted in removal. That is not an accident. Several structural and political factors make removal exceptionally difficult.
The Two-Thirds Hurdle Is Almost Impossible
The Constitution requires two-thirds of the Senate to convict. The Senate has 100 members, meaning 67 votes are required. In the modern era, the two parties have been close enough in strength that the majority party rarely holds 67 seats. Even when a president is impeached, his own party’s senators almost always vote against removal because removal means a member of the opposing party becomes president.
Impeachment Is Political, Not Legal
Despite its courtroom language, impeachment is a political process. Senators are not bound by rules of evidence the way criminal jurors are, and they vote based on political calculation as much as facts. When senators fear voter backlash for removing a president, they tend to acquit.
Public Opinion and Partisan Loyalty
Gallup polling consistently shows that most Americans want their own party’s president kept in office and the opposing party’s president removed. This partisan split means conviction requires bipartisan consensus that rarely materializes. The 1998 Clinton trial saw only 45 Democratic senators vote to convict, well below the 67 needed.
Every Presidential Impeachment in History
Four presidents have been impeached, and one came very close. Here is what actually happened in each case.
Andrew Johnson (1868): Johnson was impeached over a dispute with Radical Republicans about Reconstruction policy after the Civil War. The House passed 11 articles. He was acquitted by one vote in the Senate, falling short of the two-thirds majority by a single senator.
Richard Nixon (1974): Nixon resigned before the full House voted on impeachment. Three articles were drafted after the Watergate investigation, and he was told by Republican leaders he would lose the House vote and almost certainly the Senate trial.
Bill Clinton (1998): Clinton was impeached on charges of perjury and obstruction of justice related to the Monica Lewinsky scandal. He was acquitted in the Senate in 1999, with only 45 senators voting to convict on the perjury charge and 50 on the obstruction charge.
Donald Trump (2019 and 2021): Trump was impeached twice. In 2019 over the Ukraine phone call, he was acquitted in the Senate 52 to 48 on abuse of power and 53 to 47 on obstruction of Congress. In 2021 over the January 6 Capitol breach, he was acquitted 57 to 43, with seven Republican senators voting to convict, still short of the 67 needed.
What Happens If a President Is Actually Removed?
Removal is automatic upon a conviction vote in the Senate. The Vice President is sworn in immediately and serves out the remainder of the term. The Constitution does not require a separate swearing-in ceremony beyond the oath of office.
If the Senate also votes to disqualify the removed official from future office, that person is barred from ever holding a federal position again. Only one president has faced this situation and been removed: none, since no president has been removed through impeachment. Federal judges have been removed and disqualified, including Judge Alcee Hastings in 1989, who later won a seat in the House of Representatives.
Impeachment vs the 25th Amendment
The 25th Amendment provides a separate mechanism for removing a president who is unable to perform the duties of office, such as due to illness or incapacitation. The Vice President and a majority of the cabinet can declare the president unfit, transferring power temporarily. Two-thirds of both chambers of Congress can then permanently remove the president.
The key difference is intent. Impeachment punishes wrongdoing. The 25th Amendment deals with incapacity. Impeachment can disqualify the official from future office. The 25th Amendment does not. In practice, the 25th Amendment has only been invoked for temporary transfers of power during medical procedures.
FAQs
Why are presidents impeached but not removed?
Because the Constitution requires a two-thirds vote in the Senate to convict and remove, and senators rarely cross party lines on removal votes. Only four presidents have been impeached and none have been removed.
How many votes does Congress need to impeach a president?
The House of Representatives impeaches by simple majority vote on each article of impeachment. The Senate then holds a trial and convicts by a two-thirds vote, which requires 67 out of 100 senators.
Has a president ever been removed from office through impeachment?
No. Four presidents have been impeached (Andrew Johnson, Bill Clinton, and Donald Trump twice), but none have been convicted by the Senate and removed. Richard Nixon resigned before the full House vote.
Who removes the president after impeachment?
The Senate removes the president by a two-thirds vote to convict on articles of impeachment. Once convicted, the Vice President is immediately sworn in as president for the remainder of the term.
What happens after a president is impeached?
After the House impeaches, the Senate holds a trial. If two-thirds of senators vote to convict, the president is removed from office. The Senate may also hold a separate vote to disqualify the president from future federal office by simple majority.
What is the difference between impeachment and removal?
Impeachment is the bringing of charges by the House of Representatives and is similar to an indictment. Removal is the actual loss of office and only happens after the Senate convicts by a two-thirds vote.
Conclusion
Understanding how impeachment actually works and why it rarely removes a president comes down to three points. The House can impeach by simple majority, but the Senate requires two-thirds to convict. Impeachment is a political process, not a legal one. And partisan loyalty almost always determines the outcome in modern cases.
That is why impeachment is more often a constitutional warning than a removal tool. Knowing the difference matters when you read political news in 2026 and want to separate the rhetoric from the actual process.