Invoking the 25th is no simple task.

Section 4 of the 25th — which has never been invoked — lays out the process.

It starts with the veep and the Cabinet.

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.

Mike Pence and a majority of the Cabinet would have to give a written declaration to the Senate president pro tempore (Chuck Grassley until January 20) and the speaker of the House that the toddler-in-chief "is unable to discharge the powers and duties of his office." That would make Pence the acting president.

So first, Pence would need to get most of Trump's Cabinet to declare that he's unfit for office. While this is clearly true, getting Trump's hand-picked bootlickers to agree is no easy task. And the people who are trying to save face after yesterday's fucking disaster have already started to resign.

But it doesn't stop there. Trump would have 4 days to challenge Pence & co. and say he IS able to perform his duties.

Thereafter, when the President transmits to the President pro tempore of the Senate and the Speaker of the House of Representatives his written declaration that no inability exists, he shall resume the powers and duties of his office unless the Vice President and a majority of either the principal officers of the executive department or of such other body as Congress may by law provide, transmit within four days 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.

And then the issue would go to Congress, where both the House and Senate would have to get a supermajority to keep Trump away from the nuclear codes.

Thereupon Congress shall decide the issue, assembling within forty-eight hours for that purpose if not in session. If the Congress, within twenty-one days after receipt of the latter written declaration, or, if Congress is not in session, within twenty-one days after Congress is required to assemble, determines by two-thirds vote of both Houses that the President is unable to discharge the powers and duties of his office, the Vice President shall continue to discharge the same as Acting President; otherwise, the President shall resume the powers and duties of his office.

This is incredibly unlikely to happen in Mitch McConnell's Senate, but it seems downright impossible in the House, which is full of far too many dangerous idiots who voted for sedition, EVEN AFTER the fucking stupidcoup terrorist attack.