Joe Arpaio, the controversial former sheriff Maricopa County, Ariz., is set to stump for a GOP congressional candidate at President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE's Los Angeles golf club on Thursday.

Arpaio announced on Twitter this week that he would take the stage at Trump National Golf Club in Rancho Palos Verdes, Calif., in support of Omar Navarro, a Republican hoping to unseat Rep. Maxine Waters Maxine Moore WatersPelosi: House will stay in session until agreement is reached on coronavirus relief Omar invokes father's death from coronavirus in reaction to Woodward book Business groups increasingly worried about death of filibuster MORE (D-Calif.), one of Trump's most vocal critics in Congress.

Im guest speaker this Thurs. @TrumpGolfLA for @RealOmarNavarro who is running against Maxine Waters. See you there. — Joe Arpaio (@RealSheriffJoe) October 17, 2017

Navarro challenged Waters before, in 2016, but lost to the long-serving incumbent by more than 100,000 votes.

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According to the Daily Breeze newspaper in Torrance, Calif., the Los Angeles County Sheriff's Department will deploy additional law enforcement personnel around the golf club for the speech.

Arpaio, who served as Maricopa County sheriff in Arizona for more than two decades before he lost his reelection bid last year, was convicted earlier this year of criminal contempt for ignoring a judge's order to halt his office's racial profiling practices.

Trump pardoned Arpaio, the first of his presidency, in August.