A new federal policy cracking down on so-called “judge shopping” could impede Texas Attorney General Ken Paxton’s ability to thwart Biden Administration policies by strategically filing suits in geographic areas with only one judge.

The Judicial Conference of the United States, the policymaking body of the federal courts, said Tuesday that the new rule will apply to all civil cases that seek to block or mandate state or federal actions.

Under the policy, judges would instead be assigned through a random selection process spanning the entire judicial district. Texas has four districts splitting the state by north, south, east and west.