Illinois has joined over a dozen other states and a handful of cities in suing the US Government over a question about citizenship on upcoming 2020 census.
Critics think that immigrants, regardless of their legal status, will avoid the survey altogether, diluting political representation for states that tend to vote Democratic and robbing many communities of federal dollars.
Supporters argue that obtaining more data on the voting-age population of citizens than current surveys are providing will help the Justice Department enforce the Voting Rights Act, which protects minority voting rights.
