The Byrd administration then sought to impeach the Judicial Appeals Tribunal, although most experts agreed that no judicial impeachment power exists in the Cherokee constitution.

ECONOMIST: The Cherokee nation

He left the country in 2008 under the shadow of impeachment after losing power in elections.

BBC: Profile: Pervez Musharraf

The House of Representatives has the sole power to initiate impeachment proceedings against the president.

BBC: Impeachment: The process explained

The former military strongman stepped down from power in 2008 following the threat of impeachment by Pakistan's main political parties.

NPR: Pakistan's Musharraf Can Run For Parliament

Under the Constitution, the House of Representatives has the sole power to make accusations known as articles of impeachment.

CNN: Transcript: Judiciary Committee impeachment hearing

Clinton's lawyers have said they want to call witnesses to discuss the constitutional standards for impeachment and standards for prosecution of perjury, obstruction of justice and abuse of power, as well as exploring prosecutorial misconduct and the impact of tainted evidence.

CNN: Judiciary chairman says he's committed to voting next week

Then the committee members will consider up to five possible articles of impeachment, alleging perjury, obstruction of justice and witness-tampering, and abuse of power.

ECONOMIST: Impeachment