Steve Camarota, of the Center for Immigration Studies, says that kind of system threatens to enshrine a subclass of foreign workers.

NPR: Immigration Plan Puts Price on Visa

Mark Krikorian of the Center for Immigration Studies alleges the system can be finagled.

NPR: Critics: High-Tech Visas Cheat U.S. Workers

"TPS was invented for this kind of situation, but it has been turned into something much more permanent" said Mark Krikorian, of the Center for Immigration Studies.

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Some groups pushing the restrictionist agenda -- such as NUMBERS USA, the Federation for American Immigration Reform and the Center for Immigration Studies, all of them started with the help of nativist John Tanton -- want to limit legal immigration as well.

CNN: Commentary: Fear of foreigners drives immigration debate

"Education attainment is the single best determinant for a whole variety of social outcomes, " said Steven Camarota, director of research at the Center for Immigration Studies in Washington.

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"Most Americans recognize the United States should have some immigration, but that there are real problems of enforcement and control and numbers ... or they can say these things in an effort to silence their opponents ... it's not clear it's all that effective, " said Steve Camarota, of the immigration studies center.

CNN: Obama courts the Latino vote

According to the Center for Immigration Studies, the state has seen its population of foreign-born residents more than double since the year 2000, and half of those newcomers are believed to be Latino.

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Ultra-restrictionists such as the Center for Immigration Studies who care about nothing else except hounding immigrants out of the country might think this is a good idea.

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Mr. MARK KRIKORIAN (Center for Immigration Studies): The fact is that people who are not members of the household, members of the family, have no business issuing demands to the American people.

NPR: Immigrant Marches Planned for Labor Day Weekend

The Center for Immigration Studies, which favors a tighter immigration policy, does not believe the outspoken approach of Latino leaders will carry much weight with voters weary of the nation's broken borders.

CNN: Obama courts the Latino vote

Mr. JOHN KILLI(ph) (Center for Immigration Studies): I think what is likely, at least in 2007, is more of an impasse.

NPR: U.S. Communities Act on Immigration Issues