Everybody, look. Tom posted a source! This is big, big progress.
Unfortunately its from the Anti-immigration group CIS that been regularly debunked of any shred of credibility by fact checkers. CIS - its not just a TV show !
"FAIR, CIS and NumbersUSA are all part of a network of restrictionist organizations conceived and created by John Tanton, the "puppeteer" of the nativist movement and a man with deep racist roots ... CIS was conceived by Tanton and began life as a program of FAIR. CIS presents itself as a scholarly think tank that produces serious immigration studies meant to serve "the broad national interest." But the reality is that CIS has never found any aspect of immigration that it liked, and it has frequently manipulated data to achieve the results it seeks."
ANd since illegal immigrants are not eligible for welfare, food stamps, or medicaid....it really begs the question as to how they are putting stress on those programs.