

Beyond what others have said, I’ve heard him interview and I don’t think he can think on his feet too well.
He seemed to have a library of scripted responses and select the closest, but still mismatched response and sounded like he was reading a script. When the interviewer interjected to attempt to clarify what she assumed was a misunderstood question because the response was off, he just rewound a few words in his speech and continued, saying verbatim the last few words again before the interjection on the way to finish the response (which did kind of have an answer in the responses closing section, but the rest of the answer was useless and off topic).
On one question where he didn’t seem to have a good enough prepared response and he clearly had to wing it, it was pretty bad.
If the president can credibly disagree on his removal, then you still need 2/3 of Senate, and also 2/3 of the house.
Removing a president still capable of uttering the words “I should not be removed” is harder than convicting after impeachment.
Now if Trump does not object, the 25th is easier, but however screwed up he is, he is still quite capable of disagreeing in a way to trigger the 2/3 of Congress requirement.