> What is <this>?
Targeting specific minorities and political opponents, and detaining US citizens without access to legal representation or their families. I'm not sure how you missed these events which have been widely reported, and are unprecedented and illegal (but with a cowardly lack of any pushback / checks+balances).
These incidents are not unprecedented though. You can finds cases of citizens being mistakenly deported long before orange man ever set foot in the White House.