In the United States, no Article of the Constitution authorizes the Judicial Branch to impeach anyone, including the President.
According to Article I of the Constitution, impeachment takes place in the Legislative Branch. The House of Representatives has the sole power of impeachment (to bring charges against); the Senate has the sole power to conduct the trial of the impeached official.
The Chief Justice of the United States (Supreme Court) presides over the Senate impeachment trial, but is only there to ensure the process is conducted correctly; he (or she) doesn't vote for or against conviction.
The president can be impeached for "high crimes and misdemeanors." The House of Representatives acts as a grand jury, hearing testimony and then voting on whether or not to impeach the President (bring charges against him/her). Despite the # of representatives a state has, each state gets only 1 vote for impeaching the president. If the House votes to impeach the President, the trial is conducted in the Senate and presided over by the Supreme Court Justices. Once the trial is completed, the Senators vote (much like a jury panel) on the President's fate. In history, only two Presidents (Andrew Johnson and William Clinton) have been impeached, but neither were convicted.
U.S. Const., Art. II, Sec. 4:
"The President, Vice President and all civil Officers of the United States, shall be removed from Office on Impeachment for, and Conviction of, Treason, Bribery, or other High crimes and Misdemeanors."
Article 2, Section 4 deals with the removal of the President and other Federal Officers through impeachment.
Article 1; section 3
Article Five
article 7
article 51
article 3 deals with the judicial branch of the government
Article III deals with the supreme courts powers.
Article 6.
the addition of amendments to the constitution by congress
amending the constitution amending the constitution
the judicial article article three in the constitution
Article VI
Article I deals with the Legislative Branch
Article II of the Constitution