I know this article has a lot of stats in it but it is very interesting
As the country wrestles with a future of historic-level deficits, 67% of U.S. voters say that illegal immigrants are a significant strain on the U.S. budget.
A new Rasmussen Reports national telephone survey finds that just 23% disagree and do not believe illegal immigration is a strain on the budget.
Two-out-of-three (66%) voters say the availability of government money and services draw illegal immigrants to the United States. Nineteen percent (19%) think otherwise and do not believe government money and services are a magnet for illegal immigration. Another 15% are not sure.