The trial over the Trump administration’s decision to ask U.S. residence about their citizenship status on the 2020 census is beginning to take shape one week before it’s set to begin, with each side asking for certain evidence to be excluded and a last-ditch effort by the plaintiffs to obtain discovery.

Both the Trump administration and the plaintiffs in the case, a coalition of states and immigrants’ rights groups, asked U.S. District Judge Jesse Furman of the Southern District of New York in new filings to keep certain evidence and arguments out of the trial.