What should be done if the President is mentally ill?

There exists a mechanism for doing this already. There does not need to be another one. Just because someone does not like what the President does, does not mean he or she is mentally ill. There has to be credible evidence that there is mental illness, this CANNOT be because one party does not like the person who is in the office and wants to use any means to remove them.

Well, nothing was done about clinton, and no one surely did anything about that last thing we had sitting in the position and they were/are as nutty as fruit cakes and useless as spitting in the wind for all the terrible things they conjured up and how bad they screwed up this country. I'd say that obama established the "enabler rule" nation wide and created or at least amplified those wannabe adults of the PC class to give and get all they can without having to work for it and increase the burden on the real American working class! As far as the "regime" (a government, especially an authoritarian one) you're talking about, we just got out of one that lasted for eight years. President Trump is not a professional politician that steals from the people while smiling at the same time. So I just say anyone who doesn't like Mr. Trump to shut up, sit down and let your mouths take a rest! and apply some common sense and common courtesy to someone who took on a tremendously bad situation and just wait! So, I disagree with your statement and anyone who uses the NY Times as a legitimate source of info should really get an appointment with a mental doctor.

Wow, we've had the communist agent route, the grabbing them in the crotch route, and all the other things over the past 8 months and nothing has stuck so now we try the "he's nuts" route. The Democratic candidate got her ass handed to her on election day and like him or not just as in Obama, he is the President and if you don't like it kill yourself, move out of the country or act like an adult and move on. With actions on both sides of the aisle we have more nuts in Congress than an Alabama peanut field.

Take political parties out of the scenario for a minute. The argument can be made (especially amongst soldiers, that they're BOTH shitshows).
BLUF: Trump was a Bad Hire. By any objective measure. Impeach his ass, go with the Constitution (i.e. Shitbird --Pence), and focus on having CLEAN, (Not-Fucked-With-By-Ivan) elections going forward.

When I see anything with New York slime report its crap!!! Did they care about ol' dumbo ears status

Apparently, we let him serve out his eight years and then elect a person who'll put America first. Next question.

to late to do anything about it now since he is out of office. you should have posed question 8 years ago

The military is the enforcement tool of the commander in chief. We give up many of our liberties to serve our country, and questioning the President of the United States is one of them. We took an oath to obey the orders of the officers appointed over us, and the President of the United States is an officer appointed over us. If the order is illegal, we have an obligation to refuse to comply. Otherwise, our only comment is "Yes, Sir!"

1LT Sandy Annala Sandy, as a RP Friend; the title of your post is off base. If - 'they' have not yet charged or filed against POTUS - DONE DEAL, at ease!

He got everyone living in fear and people should not live in fear. For the record I didnt vote for this maniac. I just going to be that person telling everyone "I told ya so"