I'm fed up with instances of murder being mocked or even celebrated in US across the board.
There is something really wrong with political culture in US especially for this to happen, but it's present worldwide re polarisation to some extent, at least.
But Trump is President. The President vilely mocking the murder of a man by his own son as due to 'Trump Derangement Syndrome' (because Rob Reiner was a vocal Trump critic) is yet another symptom of the terrible slide of US political leadership to moral rock bottom.
https://www.bbc.co.uk/news/live/crk78nx2y6pt