I checked on Tom Joseph's Twitter feed at the behest of an anon user. I don't see anything but the same certainty that Trump is finished we've been hearing since the Access Hollywood tapes. The fact that Trump always escapes makes him look like Houdini.
This is no different from what people were saying about the Mueller report and the impeachment. "Trump's days are numbered for sure this time." They never admit being wrong, they just latch on to the next certainty. Tom Joseph apparently spends his days obsessing about Trump, taking breaks to play Wordle.
Republicans have been making similar armchair claims about signs of the current president's mental deterioration. They were doing it during the election, and Biden got voted in anyway. There is no serious third party in America, so if you are the nominee of the Democrat or Republican party, you have a good chance of being elected no matter how insane or senile you are. You just have to make your opponent look worse. It's like the old saying, you don't have to outrun the bear, you just have to outrun the other guy.