A former Department of Homeland Security chief of staff has claimed that federal immigration agents “don’t know what they’re doing” and “should be focusing on real criminals.”

Miles Taylor, a former chief of staff at the department who blew the whistle on President Donald Trump’s first administration in a tell-all op-ed, criticized the administration’s sweeping immigration operation that has seen thousands of federal agents reassigned from normal duties to agencies like Immigration and Customs Enforcement.

Taylor claimed that after the last two chaotic years under Trump, where deportation surges have resulted in the killings of American citizens , it would “take a generation for people to trust the department again.”

“Those agents need to be out there investigating spies, terrorists, pedophile rings,” Taylor said in a Thursday interview with NewsNation’s Chris Cuomo. “The agents themselves will confess to people like me.…