Joe Arpaio became a right-wing media celebrity due to his inhumane treatment of prisoners, who he kept detained in an outdoor prison camp, and for his hostility to immigrants. In 2017, Arpaio was convicted for criminal contempt of court in violation of an order to stop detaining suspected undocumented immigrants. President Donald Trump controversially pardoned the former sheriff, and he went on to lose a bid for Senate in 2018.