The Supreme Court on Thursday sent the case involving the Trump administration’s efforts to add a citizenship question to the 2020 census back to the lower court for further proceedings in a loss for the Trump administration.

In its ruling, delivered by Chief Justice John Roberts, the high court said there is a “significant mismatch” between Commerce Secretary Wilbur Ross’s decision for adding the citizenship question and the rationale — that asking about citizenship would ensure better enforcement of the Voting Rights Act — he provided. The court blocked the administration from including the citizenship question on the census for now, but did not rule out the possibility of the Trump administration providing an adequate justification for doing so.