President Donald Trump’s “big, beautiful bill” will pump tens of billions of dollars into law enforcement, delivering an unprecedented bonanza for the agencies behind the US administration’s crackdown on undocumented immigrants.

Get all the news you need in your inbox each morning. Administration officials say bold tactics are needed to repel what they call an "invasion" of immigrants in the country illegally. But policing experts say the aggressive approach is provoking unnecessarily dangerous encounters.

Administration officials say the new facility will speed up deportations, but local politicians and environmental groups have raised concerns.