(CNN) — Armed with tens of billions of dollars in funding, Immigration and Customs Enforcement is working fervently to expand its ranks.

But some of the Florida law enforcement agencies that closely partner with ICE aren’t happy with the way the federal agency is going about its recruitment push: sending email blasts to local law enforcement who had been trained to work with ICE – a practice one department deemed “wrong.”

At the end of July, hundreds – possibly thousands – of sheriff’s deputies and police officers working at departments that partner with ICE received an email from the agency’s deputy director, Madison Sheahan, imploring them to consider joining ICE during a “critical time for our nation.”

“Your experience in state or local law enforcement brings invaluable insight and s

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