http://www.washingtonpost.com/politics/democrats-plan
-bill-to-undo-arizona-immigration-law-if-it-is-upheld-by
-court/2012/04/23/gIQAJ4V7cT_story.html?wpisrc=al_politics

excerpt;
Schumer said he believes the court will side with the federal government. But if it does not, he will propose a new law requiring federal approval for new state immigration laws, essentially blocking implementation of Arizona’s law and others like it that have passed elsewhere.

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comment by jap69
"he will propose a new law requiring federal approval for new state immigration laws,"

yep, get their foot in the door where the federal gov't requires federal approval for state immigration laws and proceed from there on requiring federal approval for other state laws.
Voter ID among a list of any state law the feds do not like.
Vote dems out of any majority in the houses of congress to put a stop to their takeover of this country.