Read the 25th Amendment, Section 4.
Let's be clear. Vice President Mike Pence is not a good choice for President given his ignorance of science and his strange obsession against gay rights of citizens.
Seeming to believe you can "pray away" or shock away the Gay his is an ignorant person on many subjects. Not sure how you might "pray away" the gay from an atheist or Jewish gay person? Not sure how he thinks he can mandate a religious solution given separation of church and state. Or require any "treatment" what so ever.
Perhaps in his twisted religious thinking the Constitution does not apply to citizens who happen to be gay. But I digress.
His ignorance of science is not good either but given Trumps attack on regulations designed to protect us all, I don't think Pence could be any worse.
Pence at least does not seem to be insane, irrational or dangerous to the future of America in quite the Mad Max way as is Trump.
Congress, at least not yet, won't impeach Trump because they have an evil agenda of their own and are hoping they can manipulate the president into granting them and Wall Street all their grandest wishes.
The other hitch to all this is that Trump appointed those principle officers most of whom would likely lose their cushy jobs if they worked to remove Trump. They are hand-picked yes-men and stooges mostly loyal to Trump, not the the nation.
We have to hope that in the extreme case the Military would be wise enough not to risk our entire nation by following a really stupid order from Trump, say to nuke Mexico.
The more criticism Trump hears (and he hears more and more every day) the more he gets rattled and irrational. He is mentally unstable, irrational and unfit to hold the power at his disposal.
With the systems that exist to check his power also in the hands of political fanatics, we remain in grave danger of who-knows-what.
It is a question of "can we hold out" and hope Trump and Congress don't cause too much damage while we wait until we can a) switch control of Congress in 2018 and dump Trump in 2020. It won't take that long for people to decide how much trouble we could be in by then. It's a matter of holding on until we can do something.
Don't re-elect anyone !!!
Amendment XXV, 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.
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. 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.