California sued the Trump administration late Monday after the Department of Commerce announced a question regarding citizenship will be included in the 2020 census.

The lawsuit, filed in the U.S. District Court for the Northern District of California by California Attorney General Xavier Becerra, alleges that the inclusion of a question about citizenship on the census violates the Constitution. The suit claims asking about citizenship will “repress responses” from citizens and noncitizens, impeding the Census Bureau from carrying out its constitutional mandate requiring all persons in each state be counted every 10 years.