Joe Arpaio: Self-proclaimed "Toughest sheriff in America"

Over the past 20 years in elected office, Arizona county sheriff Joe Arpaio has built a reputation as the self-proclaimed "toughest sheriff in America," first making national headlines for his controversial, "outside-the-box" polices at the Maricopa County jail. More recently, immigration patrols have become his signature issue and the subject of scrutiny, resulting in a 2012 Department of Justice civil rights lawsuit. Here's a look at some of the biggest moments in his career.

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