
That Donald Trump lost his mind long time ago, probably years ago when he became the USA president, and nobody dared to put him into hospital because he is too verbally aggresive to make many people confortable. Anyway, an intelligent person (natural person or artificial person with an Artificial Intelligence) can put Donald Trump to a wall (fully verbally) just by talking with him and knowing how to handle his stupidity and aggresion - with a few years of Kendo practice is even easier.
Most probably Kamala Harris will take care of Donald Trump in a debate with or without that Kendo practice and I will watch that debate if Donald Trump has the guts to do it.