“After President Trump’s pardon of ex-sheriff Joe Arpaio, who had been convicted of criminal contempt for violating a court order designed to stop the violation of the constitutional rights of suspected illegal immigrants, conventional wisdom — and certainly the Trump administration — would have us believe that Trump’s pardon powers are unlimited. However, never before has someone stretched the pardon power so beyond its original intent. Trump has now drawn scrutiny not simply from critics of his racist rhetoric but from the court itself.”