WASHINGTON — The House Judiciary Committee has scheduled a vote on Wednesday to authorize a subpoena that Democrats can use to try to force the Justice Department to hand over an unredacted copy of the special counsel’s report and underlying evidence.

The move on Monday by Representative Jerrold Nadler of New York, the committee’s chairman, made clear that Democrats are not satisfied with Attorney General William P. Barr’s assurances on Friday that he will produce a full, albeit redacted, copy of the nearly 400-page report to Congress by mid-April.

“As I have made clear, Congress requires the full and complete special counsel report, without redactions, as well as access to the underlying evidence,” Mr. Nadler said in a statement. “The attorney general should reconsider so that we can work together to ensure the maximum transparency of this important report to both Congress and the American people.”

The committee’s announcement came a day ahead of a deadline set by Mr. Nadler and five other House committee leaders for Mr. Barr to voluntarily hand over the material collected by the special counsel, Robert S. Mueller III.