Warren, who was sworn in as sheriff in 2004, is an outspoken immigration hard-liner whose office participates in a joint immigration enforcement program with federal agencies known as 287(g).

In 2010, he stopped construction on the new Cobb courthouse due to allegations that some of the workers were undocumented. He also gained national attention for using 287(g) to help initiate deportation proceedings against a Kennesaw State University student who was stopped for a traffic violation and admitted to being in the country illegally since she was a child.

And Warren has shown he’s willing to throw his weight around, politically.

In 2017, Warren boasted in a series of text messages about pressuring the president of KSU into keeping the school's cheerleaders off the field during the national anthem in response to several kneeling in protest.

The school's president, Sam Olens, resigned under pressure shortly after, and one of the cheerleaders has filed a lawsuit against Warren and other officials accusing them of violating her civil rights.

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