The dossier attracted public attention in January when it was revealed that then-FBI Director James Comey had briefed Trump, soon before he was inaugurated as president, about claims from the documents that Russian Federation had amassed compromising personal and financial allegations about him.
Investigators probed Trump Jr over his participation in the meeting. Cohen said he sent the message on the recommendation of Trump associate Felix Sater, a Russian-born developer and USA citizen.
Trump Jr. has said he did not find the information as useful as he would have hoped.
Trump Jr.'s interview with the panel Thursday was conducted largely by committee staff, though members of the committee, including Sen.
He initially said the meeting was to discuss adopting Russian children - a statement the President reportedly help him craft. Dianne Feinstein (D-Calif.), ranking member of the Judiciary Committee, told CNN Wednesday that Trump Jr. will eventually give a public testimony - whether the president's son submits to it voluntarily or is subpoenaed.
Trump Jr., who, along with his brother Eric, is now running the president's global business organization, arrived on Capitol Hill in Washington, and the meeting began around 9:30 a.m.
Matchup breakdown for Ohio State
Ohio State is plenty capable of moving the football but to outscore the Sooners by a touchdown in this game is very debatable. The over/under total for the contest is listed at 64.5 points. "The big games like this, you see how physical you are".
In Thursday's prepared remarks, Mr Trump Jr sought to explain emails he released two months ago that showed him agreeing to the meeting, which had been described as part of a Russian government effort to help his father's campaign.
"If it's what you say I love it especially later in the summer", Trump Jr. replied to the offer. Despite his interest, he said, he always meant to consult with his own lawyers about the propriety of using any information that Ms. Veselnitskaya, who has ties to the Kremlin, gave him at the meeting.
Manafort met privately with staff on that committee in July. Blumenthal plans to attend. Attending were: Trump Jr., Manafort, Kushner, Veselnitskaya, Goldstone, Rinat Akhmetshin (a Russian-American lobbyist who previously served as a military counterintelligence officer for the Soviet Union), Ike Kaveladze (a real estate and finance executive who worked for Aras Agalarov) and a translator. He released emails this summer that showed it was "part of Russian Federation and its government's support for [President Donald] Trump".
The primary focus of the interview Thursday will nearly certainly center on the meeting Trump Jr. took with Russian lawyer Natalia Veselnitskaya after his father secured the Republican nomination for president.
The California lawmaker adds that he has questions for Facebook, which said Wednesday that hundreds of phony Facebook accounts, likely run from Russian Federation, spent about $100,000 on ads aimed at stirring up divisive issues.
Donald Trump Jr.'s appearance Thursday before the Senate Judiciary Committee would probably focus on a meeting he had with a Russian lawyer and others during the final stretches of last year's campaign.
"To the extent they had information concerning the fitness, character or qualifications of a presidential candidate, I believed that I should at least hear them out", said Trump Jr., whose statement was leaked to the New York Times.
Trump also said the meeting with Russian lawyer Natalia Veselnitskaya and others in Trump Tower in NY provided no meaningful information.