New research shows just how badly a citizenship question would hurt the 2020 Census

The Trump administration’s attempt to add a citizenship question to the 2020 Census reaches the Supreme Court on Tuesday. Thus far, three federal judges have ruled against the Trump administration, most recently in Maryland. The Supreme Court will consider not only whether the administration violated administrative law, but also whether its attempt violated the Constitution.

A crucial issue in the case is whether adding this question for the first time since 1950 will hurt the ability of the census to accurately count the American population. In particular, critics of the administration fear the question will dissuade some U.S. residents, especially immigrants, from answering the census.

Research suggests these fears are justified. CONT.

Matt Barreto, Chris Warshaw, Matthew A. Baum, Bryce J. Dietrich, Rebecca Goldstein & Maya Sen, MOnkey Cage