<P> Section 4 is the only part of the amendment that has never been invoked . It allows the Vice President , together with a `` majority of either the principal officers of the executive departments or of such other body as Congress may by law provide '' , to declare the President `` unable to discharge the powers and duties of his office '' by submitting a written declaration to the President pro tempore of the Senate and the Speaker of the House of Representatives . As with Section 3 , the Vice President would become Acting President . </P>
<P> Section 4 is the only part of the amendment that has never been invoked . It allows the Vice President , together with a `` majority of either the principal officers of the executive departments or of such other body as Congress may by law provide '' , to declare the President `` unable to discharge the powers and duties of his office '' by submitting a written declaration to the President pro tempore of the Senate and the Speaker of the House of Representatives . As with Section 3 , the Vice President would become Acting President . </P>
who decides if the president is incompetent to serve
who decides if the president is incompetent to serve
the Vice President , together with a `` majority of either the principal officers of the executive departments or of such other body as Congress may by law provide ''
the Vice President , together with a `` majority of either the principal officers of the executive departments or of such other body as Congress may by law provide ''