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An aerial view of The Villages retirement community in Central Florida, June 27, 2015. The Villages has been the fastest g...

More than 20 cities and states sue government over census questions

NEW YORK — Seventeen states, the District of Columbia and six cities have sued the U.S. government, saying plans to add a citizenship demand to the census questionnaire is unconstitutional.

The lawsuit was filed Tuesday in Manhattan federal court.

The lawsuit said adding the citizenship demand to the 2020 census questionnaire was an arbitrary decision that will “fatally undermine the accuracy of the population count.”

A government spokesman did not immediately comment on the filing.

Several states already have joined a separate lawsuit filed by California’s attorney general last week that seeks to block the citizenship question from being added to the census questionnaire.

New York Attorney General Attorney General Eric Schneiderman announced the new lawsuit.

The NAACP has said the plans for the census will lead to a massive undercounting of blacks.

READ MORE: NAACP files lawsuit over 2020 Census