feb 24, 1868 - President Johnson is impeached

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President Andrew Johnson tries to replace Secretary of War Edwin M. Stanton, a Republican radical appointed by President Lincoln. The Senate passes the Tenure of Office Act that prevents the president from removing officials confirmed by the Senate without their approval. Johnson tries twice to replace the secretary, first with Ulysses S. Grant, then with Lorenzo Thomas. After the second time, the Senate impeaches Johnson, but narrowly misses the 2/3 vote required to end his term.

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