Attorney Mark Goldman says he has another trial the week before Arpaio’s trial and that he faces a scheduling conflict because his son’s bar mitzvah is scheduled for April 29.
Prosecutors have asked U.S. District Judge Susan Bolton to reject the request.
Arpaio’s legal team is led by attorney Mel McDonald.
Goldman filed papers Friday saying he had joined Arpaio’s legal team.
Arpaio is charged with contempt for ignoring an order by U.S. District Judge Murray Snow to stop his immigration patrols.
He acknowledged prolonging his patrols, but says his defiance wasn’t intentional.