Updated at 1:08 p.m. ET

Attorney General Jeff Sessions told the House Judiciary Committee Tuesday that his "story has never changed" about his and other Trump campaign officials' connections to Russia.

"I will not accept, and reject accusations that I have ever lied," Sessions said. "That is a lie!"

Sessions told a Democratic lawmaker he stands by earlier testimony to the Senate Intelligence Committee regarding the Trump campaign's contacts with Russia. But at the same time, the embattled attorney general said that he now recalls telling a foreign policy aide to the campaign that he was not authorized to represent the campaign with the Russian government or any other foreign government.

The hearing was Sessions' first before the House Judiciary Committee as attorney general, but he has frequented other congressional panels investigating Russia's interference in the 2016 presidential election, giving almost "20 hours" of testimony this year by his count.

He has been under intense scrutiny since his confirmation hearing earlier this year, when he claimed he "did not have communications with the Russians" during the campaign. He has since clarified that statement, after reporting by The Washington Post revealed he had twice met with then-Russian Ambassador Sergey Kislyak.

He now says he had no meetings with the Russians to discuss matters related to the campaign.

"My story has never changed; I've always told the truth; I've answered every question to the best of my recollections," he said in his opening remarks to lawmakers. "It was a brilliant campaign, in many ways, but it was a form of chaos every day from Day 1."

Another contradiction sprouted up after Sessions' Senate Judiciary Committee hearing in October. The attorney general was asked about whether he or any surrogates from the Trump campaign were in communication with Russian government officials, and he responded, "I did not, and I'm not aware of anyone else that did, and I don't believe it happened."

But documents unsealed roughly two weeks ago as part of Department of Justice special counsel Robert Mueller's Russia probe showed that a Trump campaign foreign policy aide, George Papadopoulos, told investigators that he had attended a meeting led by Sessions in March 2016, where Papadopoulos said he had Russian contacts and offered to try to arrange a meeting between then-candidate Donald Trump and Russian President Vladimir Putin.

On Tuesday, Sessions seemingly denied remembering the meeting took place, while also remembering his own actions in the meeting:

"Frankly, I had no recollection of this meeting until I saw these news reports. 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. 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. But I did not recall this event, which occurred 18 months before my testimony of a few weeks ago, and I gladly would have reported it had I remembered it, because I pushed back against his suggestion that I thought may have been improper."

The House Judiciary Committee's priorities in the hearing have been clearly divided along partisan lines. While Democrats have focused most of their time and questions on Russia, Republicans questioned Sessions on topics ranging from crime rates, immigration, marijuana and the possibility of appointing a special counsel to investigate accusations against former Secretary of State Hillary Clinton.

In a line of questioning with Rep. Sheila Jackson Lee, D-Texas, the ongoing controversy in Alabama involving GOP Senate candidate Roy Moore also came up.

Sessions told the committee that he has "no reason to doubt these women" who have accused Roy Moore, the GOP nominee for Sessions' Senate seat in a December special election, of seeking romantic relationships and sexual contact with them as teenagers, when he was in his 30s.

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