simple majority in the House is required to impeach an official; a two-thirds majority in the Senate is required for conviction. A convicted official is automatically removed from office; in addition, the Senate may stipulate that the defendant be banned from holding office in the future. Impeachment proceedings may not inflict more than this. A convicted party may face criminal penalties in a normal court of law. In the history of the United States, the House of Representatives has impeached sixteen officials, of whom seven were convicted. Another resigned before the Senate could complete the trial. Only three presidents have ever been impeached: Andrew Johnson in 1868, Bill Clinton in 1999, Donald Trump in 2019 and 2021. The trials of Johnson, Clinton, and the 2019 trial of Trump all ended in acquittal; in Johnson's case, the Senate fell one vote short of the two-thirds majority required for conviction. In 1974, Richard Nixon resigned from office after impeachment proceedings in the House Judiciary Committee indicated his eventual remove from office. The Senate has an important check on the executive power by confirming Cabinet officials, judges, and other high officers "by and with the Advice and Consent of the Senate". It confirms most presidential nominees but rejections are not uncommon. Furthermore, treaties negotiated by the President must be ratified by a two-thirds majority vote in the Senate to take effect. As a result, presidential arm-twisting of senators can happen before a key vote; for example, President Obama's secretary of state, Hillary Clinton, urged her former senate colleagues to approve a nuclear arms treaty with Russia in 2010. The House of Representatives has no formal role in either the ratification of treaties or the appointment of federal officials, other than in filling a vacancy in the office of the vice president; in such a case, a majority vote in each House is required to confirm a president's nomination of a vice president. In 1803, the Supreme Court established judicial review of federal legislation in Marbury v. Madison, holding that Congress could not grant unconstitutional power to the Court itself. The Constitution did not explicitly stated that the courts may exercise judicial review. The notion that courts could declare laws unconstitutional was envisioned by the founding fathers. Alexander Hamilton, for example, mentioned and expounded upon the doctrine in Federalist No. 78. Originalists on the Supreme Court have argued that if the constitution does not