Democratic presidential candidate Bernie SandersBernard (Bernie) SandersGillibrand unveils bill to offer banking services at post offices Webb: Bernie Sanders announces his ‘new’ communism jobs, health-care plan A new progressive standard on campaign cash: It can't come from corporations MORE late Thursday blasted controversial Arizona Sheriff Joe Arpaio, accusing him of engaging in "un-American and uncivilized" behavior after a meeting between Arpaio and Sanders's wife.

Speaking at a rally in Arizona ahead of the state's primary next Tuesday, the senator referred to a trip by Jane Sanders earlier this week to visit the infamous "tent city" jail operated by the Maricopa County sheriff.
 
Jane Sanders said that Arpaio showed up unexpectedly once learning of her plans to visit the site. Arpaio quickly sought to offer her a "personal tour," and Sanders said she asked about racial profiling and other issues.
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Bernie Sanders said Arpaio, who is known for his hard-line stance on illegal immigration and has endorsed Republican candidate Donald TrumpDonald John TrumpFormer Watergate prosecutor: Trump taking the fifth would be political suicide Comey: I’m ‘embarrassed and ashamed’ by Republican party Comey, Anderson Cooper clash over whether memo release violated FBI rules MORE for president, "ambushed" his wife, according to The New York Times
 
“She asked him about racial profiling, and he didn’t have an answer,” Sanders said. “She asked him about conditions in Tent City and other abuses that he has perpetuated, and he didn’t have an answer. You know what, he cannot have an answer, because what he is doing is un-American and uncivilized.”
 
“It’s easy for bullies like Sheriff Arpaio to pick on people who have no power, but if I’m elected president, the president of the United States does have the power,” he added later. “Watch out, Joe!”
 
Rep. Luis Gutiérrez (D-Ill.), a pro-immigration reform Hillary ClintonHillary Diane Rodham ClintonKim Kardashian West defends Kanye on Trump: 'He's a free thinker, is that not allowed?' Trump comments on Fifth Amendment resurface after Cohen filing The 'Handmaid's Tale' liberal feminists created MORE backer, on Wednesday criticized the Sanders team for the meeting.

"Joe Arpaio doesn't deserve a fair hearing. He is wrong on nearly everything: his immigration policies, his indefinite detention and practices that violate human rights, his tearing families apart, his support of the demagogue Donald Trump. All Joe Arpaio wants is the spotlight — and it's a shame the Sanders campaign helped give it to him,” Gutiérrez said.