The Justice Department says Sessions looks forward to answering the committee's questions.
It remains unclear whether the Tuesday hearing will be open to the public. Lankford is on the intelligence committee, the forum for last week's riveting Comey testimony and Tuesday's hearing. Pressed on the issue Friday, Trump said "I'll tell you about that maybe sometime in the very near future".
Sessions was named head of the Trump campaign's national security advisory committee in March 2016 and was pivotal to Trump naming Flynn as national security advisor, even though it was known that Flynn had misled Vice President Mike Pence about meeting with the Russians and discussing US sanctions against Russia for the 2014 invasion of neighbor Ukraine.
Embattled Attorney General Jeff Sessions, the first USA senator to endorse President Donald Trump's candidacy, finds himself swept up in virtually every issue that has confounded the administration's efforts to advance any sort of an agenda.
"[Sources] are telling me Trump has been very angry with Jeff Sessions for recusing himself in the Russian Federation investigation to begin with, lots of profane conversations and yelling".
The next day, Mr Comey said, he implored Mr Sessions never to leave him alone again with the president, but Mr Sessions did not reply. One is whether Sessions had any undisclosed meetings with Ambassador Sergei Kislyak or other Russians during the campaign or after Trump took office.
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During Mr Sessions' January confirmation hearing, he failed to disclose the two meetings he held with Russian ambassador Sergey Kislyak during the campaign. "Totally illegal?" he asked in a tweet.
He said he believed that Comey's testimony was needed and the former director was forthcoming and candid.
Attorney General Jeff Sessions announced Monday he wants his testimony before the Senate Intelligence Committee to be public.
Mike Lee, the Utah senator, said of Mr Comey: "He doesn't..." He also urged Trump to produce any tapes of his conversations with Comey. "No more game playing", Schumer said on CBS.
But Russia - and Trump's own tweeting - threaten to swallow that effort whole, much like last week's largely forgotten "Infrastructure Week". "If the tapes are there and if Congress is able to force them loose, to force them to be revealed". The president's irrepresible tendency to bring up the Russian Federation investigation, whether by insulting Comey or suggesting the existence of tapes, has created a headache for members of his party who want to put Republican priorites, including healthcare and tax reform, front and center.
Congressional Republicans had little support for Mr Trump's attack. "Mr. President, let's don't make a circus out of your presidency".