Andrew Johnson is the only U.S. president to be impeached by the House and removed from office by the Senate following a rare conviction on charges tied to obstructing congressional Reconstruction and undermining lawful governance.
The events surrounding his removal remain a benchmark in discussions about presidential accountability, constitutional powers, and the balance between elected leadership and legislative authority.
| President | Impeachment Date | Charge | Senate Verdict | Outcome |
|---|---|---|---|---|
| Andrew Johnson | February 24, 1868 | Violation of the Tenure of Office Act | Not Guilty (one vote short of conviction) | Acquitted, served remainder of term |
Andrew Johnson Impeachment Overview
Constitutional Grounds and Political Conflict
Andrew Johnson’s impeachment centered on his violation of the Tenure of Office Act, a law restricting the president’s power to remove officeholders without Senate approval. Opponents argued he undermined lawful governance by dismissing Secretary of War Edwin M. Stanton, a key supporter of Reconstruction policies, in defiance of congressional intent. The proceedings reflected deep conflicts between the executive and legislative branches during the fragile post-Civil War period.
Tenure of Office Act and Its Role
Legal Restrictions and Presidential Authority
The Tenure of Office Act required the president to obtain Senate consent before removing certain officials appointed with Senate approval. Johnson’s removal of Stanton without Senate approval was framed as a direct challenge to the rule of law and legislative authority. Though the act was later ruled unconstitutional, its application at the time fueled the impeachment charges and intensified the political battle over Reconstruction.
Senate Trial and Acquittal
Deliberations and the Final Vote
The Senate trial focused on whether Johnson had committed high crimes and misdemeanors by defying the Tenure of Office Act. Key votes fell along partisan lines, but moderate senators ultimately blocked the two-thirds majority needed for conviction. Johnson was acquitted by a single vote and completed his term, preserving the office but leaving a legacy of constitutional tension.
Historical Context and Reconstruction Era
Presidential Power and Congressional Control
Johnson’s impeachment unfolded during the contentious Reconstruction era, when Congress sought to reshape the South and protect the rights of freed citizens. His resistance to strict Reconstruction measures and his clashes with Radical Republicans intensified the struggle between branches. The case underscored how political divisions can shape constitutional outcomes and influence the trajectory of national reform.
Key Takeaways and Civic Understanding
- Andrew Johnson remains the only U.S. president impeached and brought to Senate trial.
- His acquittal reinforced the balance between presidential and congressional authority.
- The Tenure of Office Act played a central role but was later invalidated by the courts.
- The episode highlights how constitutional processes function under intense political division.
FAQ
Reader questions
Was Andrew Johnson actually removed from office after impeachment?
No, he was impeached by the House but acquitted by the Senate, so he completed his term.
What specific act did Johnson violate to trigger impeachment?
He removed Secretary of War Edwin M. Stanton in violation of the Tenure of Office Act.
Did the Senate vote to convict Andrew Johnson fall short or reach a clear majority?
The Senate fell one vote short of the two-thirds majority needed to convict him.
How did the Tenure of Office Act affect later presidential practices?
The act was eventually repealed and ruled unconstitutional, but it shaped later norms around presidential removal power.