The main reason was his violation of a office law which he was charged with breaking when he fired his Secretary of War, Edward Stanton.
Read more: Why_was_Andrew_Johnson_impeached
Of these two, only Andrew Johnson was impeached (but not convicted).
Andrew Johnson and Bill Clinton. Impeachment does not however, always result in removal from office. Richard Nixon most probably would have been impeached had he not resigned instead, and there's a good chance he would have been removed from office as well.
Andrew Johnson and Clinton.
William.
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President Andrew Johnson was impeached by the House of Representatives, but not removed from office by the Senate.
Two presidents were impeached: Andrew Johnson and William Clinton (Bill Clinton).
Andrew Johnson, and Bill Clinton
President Andrew Johnson was impeached when he violated the Tenure of Office Act. The Tenure of Office Act was repealed in 1887.
15 March 1767
Eliza McCardel