Joe Arpaio
Maricopa County Sheriff Joe Arpaio is more than two years away from his next election, but he has spent more money campaigning in recent months than almost any candidate running in Arizona this year.
Only Sen. John McCain and wealthy gubernatorial candidate Buz Mills have spent more money. Both Republicans, however, are in red-hot primary races that go to the polls next month.
Arpaio, meanwhile, doesn’t face his next contest until the second half of 2012. Yet his most-recent financial disclosure shows the Republican sheriff has already spent $671,318 on his campaign.