Question: what four presidents have been impeached?
Answer: Summary.
Andrew Johnson (impeached Feb. 1868, acquitted May 1868)
Bill Clinton (impeached Dec. 1998, acquitted Feb. 1999)
Donald Trump (impeached Dec. 2019, acquitted Feb. 2020)
Richard Nixon (initiated Oct. 1973, resigned Aug. 1974)
John Tyler.
James Buchanan.
Harry S. Truman.