Ex-Sheriff Joe Arpaio says he's running for the Senate in Arizona

President Trump pardoned the former Maricopa County Sheriff in August 2017

Arpaio's presidential pardon came after he was convicted of contempt of court for refusing a court order to alter his department's controversial policing tactics of the Latino community in Maricopa County.

McSally, who would likely have the backed of many in the Republican leadership, has not yet made an official announcement on a senate run.

Democrats also have a strong recruit in Rep. Krysten Sinema, D-Ariz., who already has the backing of the Democratic Senatorial Campaign Committee (DSCC).