Federal agents detain employees at the Hyundai Motor Group’s electric vehicle plant in Ellabell, Georgia, on September 4. US Immigration and Customs/Handout/REUTERS

Federal agents have shifted attention away from serious gun crimes and shady weapons dealers to focus on President Donald Trump’s crackdown on undocumented immigrants and deployments to patrol cities, according to current and former officials and data reviewed by CNN.

As part of a surge of 23,000 federal officers from a slew of agencies sent to work on Trump’s deportation efforts, the Bureau of Alcohol, Tobacco, Firearms and Explosives has reassigned 80% of special agents to immigration cases, according to a former senior official at the agency. Other agents have been assigned to surges Trump has ordered to Washington, DC,

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