2010 Census May Reduce Illinois's Representation in Congress | Reuters

Illinois will likely lose one of its 19 seats in the U.S. House of Representatives if noncitizens continue to be included in the reapportionment process based on the decennial Census. Currently, reapportionment of House seats is based on the total number of residents counted in the Census, whether citizens or noncitizens 

"It is critical that Illinois's two senators demand that Majority Leader Reid allow a vote on the Vitter-Bennett amendment, making it possible to ensure that everyone is counted, but that only citizens determine
how political representation is apportioned."

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