There has been a lot of talk about the 25th Amendment to the Constitution as a method for removing the president. Specifically, Section Four of the 25th Amendment deals with the removal of a president in cases of incapacity.
Under Section Four, the president can only be removed when the vice president and a majority of the president’s cabinet conclude the president is unfit to carry out the duties of the office. At that point, the vice president becomes president. Once the president declares in writing to Congress that his infirmity has been lifted, the president assumes the presidency unless the vice president and a majority of the cabinet disagree. If there is disagreement between the president and the vice president and a majority of the cabinet regarding the president’s fitness, Congress decides the matter. In order for the president to be removed from office, a two-thirds vote in the House and Senate is required.