Springfield native Joe Arpaio is running for U.S. Senate.
The controversial former Arizona sheriff says his mission is to support President Trump's agenda and policies.
The 85-year-old Arpaio had been convicted of contempt of court in a case involving racial profiling, but was pardoned by Trump last summer.
Republican Jeff Flake's seat became available after Flake announced last year he is not seeking re-election.
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