The plaintiffs who are challenging the addition of a citizenship question on the 2020 census told the U.S. Supreme Court on Thursday that new evidence supports their claim that Trump administration officials falsely testified about why they wanted to include the question in the first place.

The notice to the justices comes as the Supreme Court likely is in the final stage of drafting its decision in U.S. Dept.  of Commerce v. New York on the legality of adding the citizenship question to the next census. The Supreme Court heard arguments in April, and the court appeared divided. The Trump administration has said it needs a ruling by the end of June in order to print the census questionnaire.