Well..., I keep hearing about the 25th Amendment in the TV series “24” and it seems that they are always trying to kick the President out of office this way... LOL...
25th Amendment...
Section 4. Whenever the Vice President and a majority of either the principal officers of the executive departments or of such other body as Congress may by law provide, transmit to the President pro tempore of the Senate and the Speaker of the House of Representatives their written declaration that the President is unable to discharge the powers and duties of his office, the Vice President shall immediately assume the powers and duties of the office as Acting President.
—
As that show says, it does say “how” the President is “unable to discharge the powers and duties of his office.” LOL...