The entire Republican party is a wretched hive of scum and villainy.
And right now Trump is the cult leader of this enormous hive of evil.
So Trump really is uniquely despicable.
That said, when Trump finally does join his Master in Hell, the next thing to emerge from the Republican slime pits will undoubtedly be worse than Trump.
"The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command." -- 1984