(CNN) — Milwaukee County Sheriff David Clarke — a loyal supporter of President Donald Trump who is reviled by civil rights advocates — resigned from his post Thursday, according to County Clerk George Christenson.
Known for his often jaw-dropping rhetoric and incendiary conservative commentary, Clarke had served as one of the country’s more well-known sheriffs since 2002, but he raised his national profile as a regular surrogate for the Trump campaign.
Clarke did not provide any reasons for his departure in a resignation letter obtained by CNN and did not respond to requests for comment.
Who is controversial Milwaukee County Sheriff David Clarke?
Thursday afternoon Clarke posted a picture of himself on Twitter “(i)n Nashville for National Fraternal Order of Police convention,” leaving no hint of his imminent resignation.
Over the weekend the President — seemingly out of no where and in the midst of Hurricane Harvey — endorsed Clarke’s recent book, tweeting, “A great book by a great guy, highly recommended!”
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CNN’s KFile reported in May that Clarke plagiarized portions of his 2013 master’s thesis on US security, though he vigorously denies the allegations.
Critics of Clarke point to what they term a sordid history of his management of the county’s jail, but the past few months have also been marked by questions over whether he would be tapped for a formal role in the Trump administration.
In May, Clarke announced on a local Wisconsin radio show that he was accepting an appointment as Assistant Secretary in the Office of Partnerships and Programs at Homeland Security — yet days turned into weeks without a word of confirmation from DHS.
Finally, DHS said in June that he was “no longer being considered” for a position within the agency, and a DHS official confirmed to CNN Thursday that he is still not up for a job there.
And while Clarke makes regular TV appearances on Fox News, a source with knowledge of the situation told CNN that there have been no discussions, at least thus far, about hiring Clarke.