WASHINGTON — Trying to combat President Donald Trump’s allegations of misconduct, the Justice Department is offering lawmakers a new look at classified documents next week on the FBI’s use of an informant in the Russia investigation.

The move comes as Republican congressional leaders are publicly disputing Trump’s claims that the government planted a spy in his 2016 campaign “to help Crooked Hillary win” — a reference to his Democratic opponent Hillary Clinton.

Three senior Republicans who have been briefed on the matter, including House Speaker Paul Ryan, have now said they have not seen evidence that the FBI acted inappropriately. Still, Ryan said Wednesday that there is “more digging to do.”

“We have some more documents to review. We still have some unanswered questions,” Ryan said.

Trump has been lashing out at the FBI amid reports that a longtime U.S. government informant approached members of his 2016 campaign to glean intelligence on Russian efforts to sway the election. Branding the effort “spygate” on Twitter, Trump said it was “starting to look like one of the biggest political scandals in U.S. history.”

Late Wednesday evening, a senior Justice Department official said the department and the FBI would offer another briefing to lawmakers — the third briefing after two last month — to the so-called “Gang of 8,” which includes congressional leaders from both parties and the top Republicans and Democrats on the House and Senate intelligence committees. The official said they would provide new materials and also “the documents that were available for review but not inspected by the members at the previous briefing.”

In offering a third briefing, the Justice Department is trying to blunt criticism from the House conservatives who have repeatedly pressed for documents and questioned the department’s conduct in the Russia investigation.

The Justice Department official said the new briefing would happen Monday or Tuesday, depending on members’ schedules, and that DOJ is prepared to “brief members on certain questions specifically raised by Ryan and other members.”

Ryan said Thursday that next week is not soon enough.

“Frankly the sooner the Department of Justice complies with all of our document requests, which are legitimate document requests, the better this is going to be for everybody, and had they complied with the document requests earlier when we made them, we probably could have spared the country of all of this drama,” he said.