There are some emergencies where you just have to pull the fire alarm. And when it’s the White House that’s going up in flames, it’s called the 25th Amendment. In a real fire, you’ll get the fire department. Alas, in a political conflagration, you’ll get Mike Pence. The Twenty-fifth Amendment was adopted on February 10, 1967.
U.S. CONST. AMEND. 25, §4: “Whenever the Vice President and a majority of either the principal officers of the executive departments…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….”