U.S. House Democrats asked a federal judge Tuesday to order the Trump administration to turn over documents related to the abandoned bid to add a citizenship question to the 2020 census, opening a new front in litigation against a president who has refused to cooperate with a number of congressional probes.

Teaming up with the law firm Debevoise & Plimpton, lawyers for the House Oversight and Reform Committee said the Trump administration has defied subpoenas seeking “critical evidence,” including unredacted communications between the Justice Department and the Commerce Department.