This statue is located in Utah's Capitol building, beneath a mural of Brigham Young and the first Mormon pioneers traveling out west. "Utah is a place that understands the value of immigration," says Utah's speaker of the House, Becky Lockhart. Kirk Siegler/NPR hide caption

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Nora Sandigo sits with Ronald Soza and his sister Cecia in 2009, while the children were on a hunger strike to protest the deportation of their mother. Sandigo is the legal guardian of the Soza children (now 15 and 18) — and 815 other American children of undocumented immigrants. Lynne Sladky/AP hide caption

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President of Honduras Juan Orlando Hernandez, left, delivers remarks on immigration beside President of Guatemala Otto Perez Molina. Michael Reynolds/EPA /LANDOV hide caption

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Thousands of young immigrants, many of them from Central America, have crossed illegally into the United States this year, causing an unprecedented humanitarian crisis on the U.S.-Mexico border. John Moore/Getty Images hide caption

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Rubio, seen here addressing the National Press Club in May, told NPR he'll decide on a presidential run in the next few months Alex Wong/Getty hide caption

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Miguel Hernandez (right), an immigrant rights activist, stands among anti-immigration activists outside of the U.S. Border Patrol's Murrieta station on Monday. The federal agency says it will not fly more detained migrants to be processed at the facility. Sandy Huffaker/Getty Images hide caption

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Immigrants from Honduras and El Salvador who crossed the U.S.-Mexico border illegally are stopped in Granjeno, Texas, on June 25. President Obama asked Congress this week for $3.7 billion to cope with thousands of minors from Central America who are illegally crossing the U.S. border. Eric Gay/AP hide caption

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Demonstrators from opposing sides confront each other while being separated by police officers on July 4, outside a U.S. Border Patrol station in Murrieta, Calif. Mark J. Terrill/AP hide caption

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Detainees sleep in a holding cell at a U.S. Customs and Border Protection processing facility in Brownsville, Texas, on June 18. The White House on Tuesday sought $3.7 billion to deal with the immigration crisis at the border. Eric Gay/AP hide caption

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The U.N. is encouraging the U.S., Mexico and other countries to treat migrant children as refugees, on the grounds that they're fleeing danger. Last week, immigration activists demanded that Mexico protect the rights of minors and families crossing its territory, during a protest outside the Mexican Consulate in Los Angeles. Damian Dovarganes/AP hide caption

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Philadelphia City Councilwoman Maria Quinones-Sanchez pushed for the city to change its practice of detaining immigrants on behalf of federal officials. Matt Rourke/AP hide caption

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