Sessions has called those allegations "false charges", and said they were hurtful and has tried to move past them.
Comey recalled that he felt "something big" was about to happen, and "my sense was the attorney general knew he shouldn't be leaving".
"I do not" Sessions said when asked whether he knows whether the president records his conversations.
But Sessions disputed that was why he lingered, suggesting there was really nothing to it.
Sessions recused himself from the Russian probe on March 2 after news reports tied him to two meetings with the Russian Ambassador Sergey Kislyak during the 2016 campaign.
Attorney General Jeff Sessions says fired Federal Bureau of Investigation director James Comey's decision to announce that Hillary Clinton would not be prosecuted over her emails was a "usurpation" of the Justice Department's authority. The FBI is part of the Justice Department that Sessions heads. He believed Comey could "handle himself well", he said. Despite that recusal, he was involved in Trump's decision to fire former FBI Director James Comey, who was leading the Russian Federation probe.
Comey testified that Sessions left the Oval Office on February 14, leaving Comey alone with Trump.
The Justice Department has responded, citing the need to follow "appropriate policies regarding contacts with the White House".
Rosenstein said he is the only Justice Department official who could dismiss Mueller because Sessions has recused himself from oversight.
US Attorney General Jeff Sessions is set to give his first public testimony before Congress since his confirmation hearing in January, when he told senators that he had not communicated with Russian officials during the presidential campaign. Sessions is the most senior member of President Donald Trump's administration caught up in the controversy over whether associates of the president colluded with Russian Federation to help Trump win the election.
"I was your colleague in this body for 20 years, and the suggestion that I participated in any collusion or that I was aware of any collusion with the Russian government to hurt this country, which I have served with honor over 35 years, or to undermine the integrity of our democratic process is an appalling and detestable lie".
Senators may also be curious about Sessions' current relationship with the President.
Though the Justice Department maintains that it has fully disclosed the extent of Sessions' foreign contacts past year, lawmakers have continued to press him for answers about an April 2016 event at the Mayflower Hotel in Washington, where both Sessions and Kislyak attended a foreign policy speech by Trump. Mueller was recently appointed to lead the investigation into whether the Trump campaign coordinated with Russian Federation to influence the 2016 presidential election. He said he had chose to testify before the Senate Intelligence Committee since members of the subcommittee has planned to inquire about the investigation into Russian meddling in the 2016 presidential election.
All eyes will be on Attorney General Jeff Sessions as he testifies before the Senate intelligence committee on Tuesday.
Burr says the committee staff met with Johnson on Monday.
Sessions arrived at the Capitol with Washington roiling over reports that Trump was considering removing Robert Mueller, the special counsel leading the Russian probe. "I think he's weighing that option", Chris Ruddy, chief executive of Newsmax, told the PBS News Hour, speaking of Trump.
Attorney General Jeff Sessions promised that he would not do anything that could result in special counsel Robert Mueller's dismissal from the Russian Federation investigation.
Feinstein also asked if Rosenstein had an estimate for how long the investigation will take. Lindsey Graham, Rosenstein said that having given political donations is not a disqualifier.
"The Attorney General has requested that this hearing be public", reads a statement issued by the Department of Justice.
"I wouldn't think that that would be appropriate for me to do". Trump "should voluntarily turn them over", Collins said.
He also vehemently denied speaking to Russian officials about the election, during a campaign in which he was a close adviser to candidate Trump.
In a congressional hearing on Tuesday, Rosenstein offered assurances about Mueller.