(CNN) The chairman of the House Oversight Committee indicated Friday morning that he will proceed with a contempt vote against Attorney General William Barr and Commerce Secretary Wilbur Ross over a dispute about documents regarding a potential citizenship question on the 2020 census.

The Department of Justice said on Thursday it was working to get the committee more documents in response to a subpoena for the information, but said some materials the panel has requested will continue to be withheld. Justice is also refusing to allow John Gore, a senior official in the civil rights division, to appear before the committee without department counsel in the room -- which the committee has thus far refused to allow.

House Oversight Chairman Elijah Cummings, however, said that offer was insufficient.

"We gave Attorney General Barr and Secretary Ross every opportunity to produce the documents the Committee needs for our investigation, but rather than cooperate, they have decided that they would rather be held in contempt of Congress," Cummings, a Maryland Democrat, said in a statement Friday morning. "They produced none of the documents we asked for, they made no counter-offers regarding these documents, and they seem determined to continue the Trump Administration's cover-up."

Cummings had said Monday he would postpone the contempt vote if the Commerce and the Justice departments produced the materials the committee had previously requested.

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