Yup. That's how Stalin did it.
Except Stalin didn't threaten; he "disappeared" people. Or you could just be crossing the street, walking home late at night, and drop dead on the sidewalk.
That kind of thing would never happen here.
Hell, that’s how FDR did it. Read the histories of the 30s and the New Deal. The abuses of power by the executive were simply staggering beyond belief.