Numerous Asian-American and Latino groups filed a lawsuit against Commerce Secretary Wilbur Ross challenging the Commerce Department’s decision to add a citizenship question to the 2020 Census. The plaintiffs argue that the Department’s decision violates the U.S. Constitution and the Administrative Procedure Act. This case is pending in the U.S. District Court for the District of Maryland.
https://www.brennancenter.org/our-work/court-cases/la-union-del-pueblo-entero-v-ross