And he said that though he did not initially recall a March 2016 conversation with Papadopoulos, he now believes after seeing media reports about it that he told Papadopoulos that he was not authorized to represent the Trump campaign with the Russian government or any other foreign government.
He is also likely to face questions about Trump campaign contacts with Russian Federation. Sessions is at the hearing to answer questions about his leadership of the Department of Justice and his interactions with Russians while a top adviser in the Trump campaign.
The staff interview behind closed doors with Rinat Akhmetshin is part of the committee's probe into Russian meddling in the 2016 election, as well as an ongoing investigation by Senate Judiciary Chairman Chuck Grassley into lax enforcement of the Foreign Agents Registration Act.
Attorney General Jeff Sessions said Tuesday he is unfamiliar with an Federal Bureau of Investigation report about black extremists that has alarmed some lawmakers.
In his confirmation hearing in January, Sessions had pledged to senators he would recuse himself from matters involving Clinton, given his involvement with the Trump campaign. "But it was a form of chaos every day from day one".
Rep. John Conyers Jr., Michigan Democrat, displayed copies of a series of recent tweets from Mr. Trump in which the president called for an investigation into Russia's 2010 purchase of uranium rights and donations to the Clinton Foundation while Mrs. Clinton led the State Department.
"These senior prosecutors will report directly to the attorney general and the deputy attorney general, as appropriate, and will make recommendations as to whether any matters not now under investigation should be opened, whether any matters now under investigation require further resources, or whether any matters merit a special counsel", Boyd wrote.
On Tuesday, Sessions said that any such review would be done without regard to political considerations.
Sessions grew angry in response, repeating that he had never lied under oath.
The hearing comes after a year where Sessions has been under repeated pressure from the President to launch investigations into Clinton and has been under fire from congressional Democrats about his answers on Russian Federation and push end the DACA program for undocumented immigrants brought to the United States as children, among other issues.
Some Democrats have suggested that Sessions's multiple false statements to Congress this year were conscious lies. When The Washington Post later revealed he had twice spoken with Russia's ambassador to the United States, he revised his account, saying he had no meetings with Russians "to discuss issues of the campaign".
"But, honestly, they should be looking at the Democrats", Mr. Trump said.
Sessions has given sworn testimony at least three times to Senate and House committees, and Democratic lawmakers have pointed to inconsistencies in his statements.