<P> The House debates the resolution and may at the conclusion consider the resolution as a whole or vote on each article of impeachment individually . A simple majority of those present and voting is required for each article for the resolution as a whole to pass . If the House votes to impeach, managers (typically referred to as "House managers", with a "lead House manager") are selected to present the case to the Senate . Recently, managers have been selected by resolution, while historically the House would occasionally elect the managers or pass a resolution allowing the appointment of managers at the discretion of the Speaker of the United States House of Representatives . These managers are roughly the equivalent of the prosecution / district attorney in a standard criminal trial . </P> <P> Also, the House will adopt a resolution in order to notify the Senate of its action . After receiving the notice, the Senate will adopt an order notifying the House that it is ready to receive the managers . The House managers then appear before the bar of the Senate and exhibit the articles of impeachment . After the reading of the charges, the managers return and make a verbal report to the House . </P> <P> The proceedings unfold in the form of a trial, with each side having the right to call witnesses and perform cross-examinations . The House members, who are given the collective title of managers during the course of the trial, present the prosecution case, and the impeached official has the right to mount a defense with his own attorneys as well . Senators must also take an oath or affirmation that they will perform their duties honestly and with due diligence . After hearing the charges, the Senate usually deliberates in private . The Constitution requires a two thirds super majority to convict a person being impeached . </P> <P> The Senate enters judgment on its decision, whether that be to convict or acquit, and a copy of the judgment is filed with the Secretary of State . Upon conviction in the Senate, the official is automatically removed from office and may also be barred from holding future office . The removed official is also liable to criminal prosecution . The President may not grant a pardon in the impeachment case, but may in any resulting criminal case . </P>

Who presides over any impeachment trial of the president of the united states