What Is Impeachment and Why It Matters
Impeachment is a constitutional mechanism to charge and potentially remove a federal official for misconduct. The U.S. House of Representatives initiates impeachment by voting on articles of impeachment, and the Senate conducts a trial to decide removal. This process applies to the President, Vice President, and all civil officers of the United States, as defined in the Constitution.
Impeachment is often confused with removal, but it is only the formal accusation phase. The House votes on impeachment, and the Senate holds the trial. A two-thirds supermajority in the Senate is required to convict and remove the official. The process is designed to be rare and rigorous, ensuring that removal is reserved for serious offenses such as abuse of power, bribery, or high crimes and misdemeanors.
How the Impeachment Process Works Step by Step
The process begins with an investigation, often led by House committees such as the Judiciary Committee. The committee gathers evidence, holds hearings, and drafts articles of impeachment. If the committee approves, the full House debates and votes. A simple majority is needed to impeach, which means at least 218 votes in the current 435-member House.
After impeachment, the case moves to the Senate for a trial. The Chief Justice of the United States presides over presidential impeachment trials. Senators act as jurors, and House members serve as prosecutors. The accused can present a defense, call witnesses, and submit evidence. A two-thirds vote of the Senate, at least 67 votes in the current 100-member chamber, is required to convict and remove the official from office.
Key Outcomes, Penalties, and Historical Context
If the Senate convicts, the official is immediately removed from office and may be barred from holding future federal office. The Senate can also impose additional penalties, such as disqualification from office, with a simple majority vote separate from the conviction vote. The Constitution does not allow for criminal penalties through impeachment alone, but the removed official can still face criminal prosecution through the regular justice system.
In U.S. history, several federal officials have been impeached by the House, but only a few have been convicted by the Senate and removed. Notable cases include federal judges and a U.S. President, with outcomes shaped by the specific charges, evidence, and political dynamics. For a detailed timeline of past impeachments and outcomes, see the official House of Representatives history page at history.house.gov. The Senate's own rules and procedures for impeachment trials are also publicly available at senate.gov.