A controversial Arizona sheriff says he dares the Rev. Al Sharpton to visit his town to protest policies against inmates and undocumented workers. Some months ago, Sharpton threatened to march on Phoenix unless Maricopa County Sheriff Joe Arpaio resigned. Sharpton has been an outspoken critic of what he says is Arpaio’s penchant for detaining even legal Mexican immigrants and embarrassing and dehumanizing those held in his jail. But in a letter dated June 3, Arpaio shot back at the high-profile civil rights leader. “This is about you making self-serving, grandiose pronouncements, making outrageous statements at meaningless press conferences,” the sheriff writes. Read what else the sheriff wrote.