Except SCOTUS has just ruled that defendants have to make a legal claim for each and every act enabled by an unconstitutional law. So yeah Trump can do literally anything he likes.

Trump issues an executive order overruling the court decision…

Loyalist.

The president cannot just order someone to be deported, it has to available under legislation. Not that the law matters anymore.

The ruling says that any prisoners sent to El Salvador are still under US jurisdiction.

Go and read it this time.