Story highlights The President's oldest son met with Hill staffers for more than five hours

Donald Trump Jr. met with a Russian lawyer in June 2016

Washington (CNN) Donald Trump Jr. told Senate judiciary committee staffers Thursday that he did not recall the details of White House involvement in the public response to his 2016 meeting with a Russian lawyer and did not know much about the Air Force One meeting that allegedly led to the production of the statement, sources told CNN.

Trump Jr. was explicitly asked whether he either took any of the Russian participants in the June 2016 Trump Tower meeting to see his father -- now President Donald Trump -- or whether he told his father about the meeting after, sources said. He insisted he did neither.

Asked why his father promised the next day that dirt was coming on Hillary Clinton, Trump Jr. told Senate staffers that's just the way his father talks.

The President's eldest son met with congressional investigators for more than five hours Thursday, but at least one member of the Senate judiciary committee is saying Trump Jr.'s interview is doing little to ease their concerns.

Following the meeting, Trump Jr. tweeted about his interview.