Former Arizona Sheriff Joe Arpaio, who last year was pardoned by President Donald Trump in a case stemming from his enforcement tactics aimed at immigrants, announced Tuesday he will run for the open Senate seat in his home state.
"I am running for the U.S. Senate from the Great State of Arizona, for one unwavering reason: to support the agenda and policies of President Donald Trump in his mission to Make America Great Again," Arpaio, 85, said on Twitter.
He'll enter a Republican primary for the seat being vacated by Republican Sen. Jeff Flake.
Last fall, Trump pardoned Arpaio, who was convicted in July of criminal contempt for violating a federal court order to stop racially profiling Latinos.
It was Arpaio's roughly quarter-century as sheriff that gave him a national reputation for his tough treatment of people suspected of being in the country illegally. Repeated court rulings against his office for civil rights violations cost local taxpayers tens of millions of dollars.
In the early 1990s, Arpaio directed construction of a tent city for immigration detainees, a measure he said was intended both to alleviate overcrowding and to underscore his aggressive enforcement measures. But it was open to the burning Arizona sun, and drew widespread criticism.
After Trump entered the presidential race in July 2015, Arpaio invited him to Phoenix to talk about a crackdown on illegal immigration. He endorsed Trump just before the first votes in the Iowa caucuses last year and frequently spoke out on behalf of Trump's campaign.