The thing about dementia, as I understand it, is that when it gets to the prefrontal cortex, ie, "executive function," then all the inhibition about saying or doing truly insane things disappears. Trump has always been a lying asshole, but he would have a little caveat, oh, I'm just joking or something. Calling for the execution of members of Congress is enough of a proof that the guy's gone for me.

We do have impeachment and/or the 25th Amendment.

Or maybe Melania can just take him home to Slovenia.