I believe it's Title 8 of the US Code that deals with immigration. It is all that is needed legally to deal with the immigration problem. Nothing new is needed.

The only way to try and stop illegal imigration is to seal the border which would take billions and billions of dollars over at least a decade. Then it would take billions annually to maintain that security, but even then illegal immigration would still take place. Of course, once illegal immigration is interdicted, what happens to the price of tomatoes? How about $5 p/lb?

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