Studies by the Congressional Budget Office (CBO), Oxford University, U.S. Treasury, Federal Reserve Bank of Kansas City, National Bureau of Economic Research, American Enterprise Institute, and several others have all concluded at different times that lower hourly wages account for a substantial portion of corporate income tax payments.

FORBES: Low-Skilled Immigrant Workers Are Vital Contributors To The Economy

Kris W. Kobach, a University of Missouri-Kansas City School of Law professor, who worked on immigration policy for former U.S. Attorney General John Ashcroft and who helped draft the Arizona statute, insists that it's narrowly targeted to take advantage of an enforcement mechanism Congress left the locals in 1986.

FORBES: Immigration Shootout At The Local Corral