Reports last week suggested Sessions offered his resignation to Trump because the President blamed Sessions for exacerbating his Russian Federation problems by recusing himself from the probe.
For the embattled attorney general, the hearing will be the first time he is questioned by senators since January, when he testified during his confirmation hearing that he did not communicate with any Russian officials during the presidential campaign, when Sessions acted as an adviser to Trump.
"(Sessions) believes it is important for the American people to hear the truth directly from him and looks forward to answering the committee's questions tomorrow", a Justice Department spokesperson said.
To return to my opening question with another rhetorical question, is it even possible to be too cynical about anything in Donald Trump's orbit?
Sessions will also be prepared to describe the process of filling out his SF-86 security clearance form in 2016 - specifically, the advice he received from Federal Bureau of Investigation personnel that he didn't need to include all of the meetings he had with foreign officials in his capacity as a sitting senator, the source said.
New questions about Sessions were raised last week, after former FBI Director James Comey said that he and other leaders at the agency had expected Sessions to recuse himself weeks before he did - and that the reasons behind that thinking are classified. The Justice Department has denied that, saying Sessions stressed to Comey the need to be careful about following appropriate policies.
"It depends on the scope of the questions", White House press secretary Sean Spicer said when asked whether Sessions would invoke executive privilege.
After a February 14 meeting in the Oval Office in which Comey charges that President Trump said he hoped the FBI director would "let go" of the investigation into former National Security Advisor Mike Flynn, Comey said he went to see Sessions and asked the attorney general to not leave him alone with the president again.
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What was Comey referring to last week about Sessions?
In addition to the Senate Intelligence Committee's investigation into Russia's role in USA politics, special counsel Robert Mueller is leading an independent inquiry into Russia's meddling and potential links between Russians and the Trump campaign, after being appointed by Deputy Attorney General Rod Rosenstein last month.
The attorney general is also expected to push back on the notion that he committed perjury when he denied having had any communications with Russians during the presidential campaign past year, the source said. Sessions is expected to face sharp questioning from his former Senate colleagues about his role in the investigation into contacts between Trump campaign associates and Russian Federation during the 2016 election. He met with Kislyak twice while he was a US senator. Back on January 10, Sessions said, "I did not have communications with the Russians" - but the story wasn't so simple. The White House has denied any collusion with Moscow.
However, during his testimony and in answering senators' questions, Sessions is prepared to address some outstanding lines of inquiry regarding the Russian Federation investigation and his time as attorney general. That's what I think he's going to be considerably anxious about. "I think he's weighing that option", Chris Ruddy, chief executive of Newsmax, told the PBS News Hour, speaking of Trump.
Comey described the Oval Office meeting, before his one-on-one with Trump, as "a scheduled counterterrorism briefing".
A US District Court judge in Washington gave the Justice Department one month to make public a page of Attorney General Jeff Sessions' clearance form, on which he was meant to disclose any contacts with Russian officials.