Impeach!

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Impeachment is a process in which a public official is accused of unlawful activity and may be removed from office if he is found guilty. In the U.S. federal government, the House of Representatives have to sole power to impeach while the Senate will try any impeachment hearing. Two U.S. presidents have been impeached: Andrew Johnson for violating the Tenure of Office Act and Bill Clinton for perjury and obstruction of justice. Both were acquitted by the Senate.