Here’s where courts are slowing Republican efforts for a state role in enforcing immigration law

FILE - People march during an Iowa Movement for Migrant Justice rally and march, Wednesday, May 1, 2024, in Des Moines, Iowa. A federal judge on Monday temporarily blocked an Iowa law that allows law enforcement in the state to file criminal charges against people with outstanding deportation orders or those who previously had been denied entry to the United States. (AP Photo/Charlie Neibergall, File)

DES MOINES, Iowa (AP) — The federal government has long had sole authority over immigration policy in the United States, but several Republican-led states have continued to push for a role in enforcing regulations out of frustration with current policy and as a way to criticize Democratic U.S. President Joe Biden.

With polling showing Americans are increasingly worried about illegal immigration, the concern has in the presidential campaign between Biden and Republican Donald Trump. Republican officials in several states say they owe it to their citizens to be more proactive in charging and deporting people who don't have legal status to be in the U.S.

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