Arpaio’s charges are misdemeanors, which means he will probably never see a jail cell. I don’t think you can do a pardon on a misdemeanor.
Where's it say that?
The sheriff was convicted (by a federal bench bitch, a Clinton appointee) of violating a federal judge's order.
Misdemeanor or not, it's a federal beef, and thus pardonable, Deep State be damned!