"We intend to get to the bottom of these leaks", Sessions said while testifying before the House Judiciary Committee Tuesday.
Page told the panel he had informed some members of the Trump campaign about the trip, including Sessions.
"I'm really not involved with the Justice Department", Trump told reporters earlier this month.
"Jeff Sessions needs to follow his prosecutorial instincts and open a federal criminal investigation into the actions of Hillary Rodham Clinton and impanel a grand jury immediately", Pirro said in a September episode of her show.
Mr. Trump is frustrated with the continuing investigations into Russia's election meddling and possible ties to his campaign.
Conyers repeated the question, and Sessions replied, "I would say that the Department of Justice can never be used to retaliate politically against opponents".
In October, Sessions testified to the Senate that he did not have any "continuing exchange of information" with Russian operatives - and that he wasn't "aware of anyone else [on the Trump campaign] that did". "But we do our duty every day based on the laws and fact".
But Sessions insisted he did not make any false statements in his previous congressional testimony or public statements.More news: Mitt Romney blasts Roy Moore as 'unfit for office'
Mr. Sessions declined to say whether he was recused.
During an Oval Office meeting with the president on November 1, Pirro denounced Attorney General Jeff Sessions and his refusal to go after Clinton, who was Secretary of State when the deal was approved.
Jeff Sessions's memory works in mysterious ways. "I have always tried to answer the questions fairly and accurately". Sessions asked with a slight smirk.
He struck a similar note before the Senate Judiciary Committee last month, when he denied knowledge of communications between Russians and Trump campaign officials. Trump has repeatedly voiced frustration about the Mueller probe and publicly criticized Sessions, stoking speculation he might be fired. Sessions supervised the advisory group on which Papadopoulos sat and reportedly rejected his suggestion for Trump and Russian President Vladimir Putin to meet.
In this April 6, 2017, photo, former Secretary of State Hillary Clinton speaks during the Women in the World Summit at Lincoln Center in NY. "It sure looks like the FBI was paying the author of that document and it sure looks like a major political party was working with the federal government" to damage Trump, Jordan said.
Sessions' highly-anticipated testimony comes just hours after the Justice Department announced that he had appointed senior federal prosecutors to make recommendations as to whether any matter not now under investigation should be opened, and whether they require further resources or the appointment of a special counsel.
The Washington Post and New York Times cited a letter from the Justice Department to the Republican chairman of the House of Representatives Judiciary Committee, Robert Goodlatte, responding to his request for the appointment of a special counsel to look into various matters.