In a snap ruling from the bench, U.S. District Judge Morrison England of the Eastern District of California on Thursday temporarily blocked a new California law requiring presidential candidates to disclose five years of tax returns to appear on the 2020 primary ballot.

The tentative ruling followed a free-wheeling, two-hour hearing over a request by President Donald Trump’s campaign and Republicans at the state and federal law for a preliminary injunction. Lawyers arguing the case were preparing to leave the courtroom at the end of arguments when England told everyone to wait and then announced how he intended to rule.