WASHINGTON - Attorney General Jeff Sessions on Tuesday again revised his account of what he knew about the Trump campaign's dealings with Russians, acknowledging for the first time that he recalled a meeting where a foreign policy adviser mentioned having contacts who could possibly broker a meeting between then-candidate Donald Trump and Russian President Vladimir Putin.

Testifying before the House Judiciary Committee, Sessions said he now remembered adviser George Papadopoulos saying in March 2016 that he knew people who might be able to help arrange a Trump-Putin meeting.

When Sessions was asked last month whether he thought surrogates from the Trump campaign had communications with the Russians, he said: "I did not, and I'm not aware of anyone else that did, and I don't believe it happened."

But at Tuesday's hearing, Sessions said his memory had been refreshed.

"I do now recall the March 2016 meeting at the Trump hotel that Mr. Papadopoulos attended, but I have no clear recollection of the details of what he said at that meeting," Sessions told lawmakers. "After reading his account, and to the best of my recollection, I believe that I wanted to make clear to him that he was not authorized to represent the campaign with the Russian government or any other foreign government, for that matter."

Sessions added later: "I remember the push-back. I remember that he suggested an ability to negotiate with Russians or others, and I thought he had no ability, or it would not be appropriate for him to do so."

The hearing, which lasted more than five hours, marked the first time Sessions has personally addressed apparent discrepancies that have emerged in recent weeks between what he has said publicly and what other Trump advisers have claimed about their Russia-related dealings.

Papadopoulos pleaded guilty in early October to lying to the FBI, admitting he told Trump, Sessions, and other campaign officials that he had contacts who could help arrange a meeting between Trump and Putin.

Separately, former Trump campaign foreign policy adviser Carter Page testified before the House Intelligence Committee recently that he had told Sessions of his plans to travel to Moscow.

Democrats questioned Sessions about his dealings with both men, noting that their accounts were out of sync with what Sessions had said previously and that his account of Russia-related matters had shifted multiple times.

"I hope the attorney general can provide some clarification on this problem in his remarks today," Rep. John Conyers (D., Mich.) said.

The hearing at times grew heated, as Sessions insisted that he had "always told the truth" and bristled at the suggestion that he had ever misled legislators or the public. He said his memory had been refreshed by news accounts and asserted that he still did not recall his conversation with Page - though he added that he was "not able to dispute it."

Page has also said the interaction was brief and forgettable, as he was not traveling to Moscow for the campaign.

"Does that establish some sort of improper contact with the Russians?" Sessions rhetorically asked Rep. Hakeem Jeffries (D., N.Y.).

The hearing was Sessions' first appearance before the House Judiciary Committee, and it came as the attorney general found himself a key figure in several major news events.

A day earlier, the Justice Department sent a letter to committee Chairman Bob Goodlatte (R., Va.) saying Sessions had directed senior federal prosecutors to explore whether a second special counsel should be appointed to look into a host of GOP concerns - possibly including alleged wrongdoing by the Clinton Foundation and the controversial sale of a uranium company to Russia.

Under critical questioning from Rep. Jim Jordan (R., Ohio), Sessions said he would need a "factual basis" to appoint a special counsel and remarked that Jordan's assertions about how things appeared were "not enough basis" to do so. But he later clarified that he "did not mean to suggest that I was taking a side one way or the other on that subject."

The mere suggestion of appointing a special counsel to investigate Clinton-related matters drew swift condemnation from Democratic lawmakers, though some commentators said Sessions seemed to be trying simply to mollify conservatives by floating the idea of a second special counsel without actually installing one.

Conyers sought to highlight the fact that Trump had publicly pressed the Justice Department to investigate Clinton-related matters, noting: "What strikes me about these comments is the president's view that the criminal justice system serves him and not the public."

Sessions, though, disputed that he had been inappropriately pushed to do anything.

"I have not been improperly influenced and would not be improperly influenced," he said.

Sessions has said previously that he would recuse himself from any Justice Department investigations of Clinton's email practices or her family's charitable foundation - mindful that his past public comments "could place my objectivity in question."

Sessions was also pressed Tuesday to answer questions about the conduct of Alabama Republican Senate candidate Roy Moore, who is running to fill the seat Sessions once held.

Asked by Rep. Sheila Jackson Lee (D., Texas) if he believes the women who have accused Moore of sexual misconduct, Sessions replied: "I have no reason to doubt these young women."