NEW ORLEANS — Trump administration officials overseeing the immigration crackdown launched this week in New Orleans are aiming to make 5,000 arrests, a target that some city leaders who oppose the operation say is unrealistic and would require detainining more than just violent offenders.

It's an ambitious goal that would surpass the number of arrests during a two-month enforcement blitz this fall around Chicago, a region with a much bigger immigrant population than New Orleans. Records tracking the first weeks of the Chicago operation also showed most arrestees didn’t have a violent criminal record.

In Los Angeles — the first major battleground in President Donald Trump's aggressive immigration plan — roughly 5,000 people were arrested over the summer in an area where about a third of L

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