Arpaio, well known for his “tent cities,” an extension of the jail where he keeps inmates, said he would also participate in the rally.

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“Here I’m gonna be kinda wearing two hats — in charge of the security there in the town and also participating, I would imagine, with Trump in the rally, so it makes it interesting,” Arpaio told Politico , adding that it “is going to be a lot of fun taking care of business there.”

Arpaio endorsed Trump in January, drawing criticism from immigration activists. Arpaio was closely associated with a 2010 Arizona law that directed local authorities to stop people they suspected of being undocumented immigrants.

He has also been accused of racial profiling and discrimination.

Trump has said he’s proud of the endorsement.

“Sheriff Joe Arpaio endorsed me. And if he endorses you, believe me, you are the strongest, from Arizona,” Trump said during a GOP debate in March.