Dems claimed Trump was the next Hitler.It is an election year. It is a game that the U.S. plays with each incumbent president.
Were you to look back through the decades you would see claims about each incumbent president being the worst ever. Some may qualify such statements and give more specifics, but others do not.
For the majority of people decisions are emotional. Hence emotional rhetoric abounds in an attempt to sway others.
But I recall them calling GW Bush "worse than Hitler".
Histrionics come & go, but are seldom remembered, eh.