PHOENIX - Joe Arpaio announced Tuesday he will run for Senate.
Arpaio announced the news on Twitter where he has already changed his profile picture to a campaign sign.
The 85-year-old former sheriff of Maricopa County could join the race for the open seat left by Sen. Jeff Flake -- who announced he would not seek re-election.
A longtime supporter of President Trump, Arpaio was pardoned last summer by Trump after he was found guilty of criminal contempt.
Arpaio lost his attempt for a seventh term as Maricopa County sheriff to Paul Penzone.
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