House Oversight Committee Chairman James Comer (R-KY) criticized the White House on Wednesday for refusing to respond to the committee’s requests related to the Republican-led impeachment inquiry into President Joe Biden.

Comer reiterated his demands in a letter to White House counsel Richard Sauber, asking that Sauber notify him by next week if the White House does not plan to cooperate “so that the Committee may act accordingly,” Comer wrote. The chairman did not specify what steps he would take next.