The law is slated to take effect in the summer, and allows police to arrest illegal immigrant day laborers looking for work on the street and anyone who hires them.
Some day laborers say they already see a difference in fewer job prospects and are considering going to neighboring states.
That's exactly what the law's supporters want. They hope their departure will help dismantle part of the underground economy here and create jobs for thousands of legal residents.
Federal data shows an estimated 100,000 illegal immigrants have left Arizona in the past two years as it cracked down on illegal immigration and its economy soured.
Texas State Rep. Debbie Riddle said Wednesday she will propose immigration reform legislation like the controversial law passed in Arizona, joining another lawmaker who promised the same last week.
But Governor Rick Perry says Arizona's tough new illegal immigration law wouldn't be right for Texas.
A new law in Arizona requires local and state law enforcement to question people about their immigration status if there's reason to suspect they're in the country illegally. The law also makes it a state crime to be in the U.S. illegally.
Perry said Thursday that such a law would turn law enforcement officers into immigration officials by requiring them to determine immigration status.
He says the extra duty would take law officers "away from their existing law enforcement duties, which are critical to keeping citizens safe."
In other words, Perry will go out of his way not to piss off Hispanic voters in an election year.