A federal judge in California has blocked the Trump administration from including a citizenship question on the 2020 census, ruling the decision to add the question is unconstitutional.

U.S. District Judge Richard Seeborg of the district court in San Francisco is the second federal judge to reject the Trump administration’s bid to include the citizenship question on the upcoming census questionnaire. It’s a fraught political issue, with Democrats calling the citizenship question a thinly-veiled effort to supress counting of minorities — a charge Republicans roundly reject.