"I don't believe you can shield communications between individuals merely by having an attorney present", he told reporters.
During eight hours of questioning by the House intelligence committee on Wednesday, Donald Trump Jr. acknowledged that he and his father had discussed news of his controversial 2016 meeting with a Russian lawyer after the New York Times revealed the secret sitdown this summer.
Despite the White House denials, Russian Federation probe investigators have pushed hard to learn all possible details about exactly what Mr. Trump knew about the Veselnitskaya meeting.
Trump Jr.'s attorney asked "for more time to deliberate" on whether to share additional information, and Schiff said Democrats will follow up on their request for details about what the Trumps discussed. The White House has said the president was involved in drafting an early statement saying the meeting primarily concerned a Russian adoption program.
Trump Jr. and Jared Kushner, Trump's son-in-law, addressed the gathering with many Russian operatives under the belief that they might acquire disastrous data about the Democratic presidential candidate, Hillary Clinton.
The Senate intelligence committee also hopes to interview Trump Jr. before the end of the year. It was then that Trump Jr., per the sources, said Clinton's testimony was not the same: she was testifying about the 2012 attack in Benghazi where four Americans were killed.
Trump Jr.'s refusal to answer questions about his conversation with his father "have given Mueller a clearer signal that the answer is incriminating", wrote former Department of Justice Director of Public Affairs Matthew Miller on Twitter Wednesday.
Appearing voluntarily, Donald Trump Jr. arrived out of sight of cameras through a back entrance to the U.S. Capitol for the highly anticipated session.
Schiff told reporters that he wants Trump Jr.to answer questions about his conversations with his father and their public response to the meeting.
"The only category of question the he declined to answer were, with respect to any discussion with his father about the June 9th meeting, after the emails had been disclosed publicly", Rep. Adam Schiff, D-Calif., told ABC News's Pierre Thomas after the interview. This particular discussion revolves around a pivotal meeting, that is where representatives of the Russian government who were portrayed as providing dirt on Hillary Clinton as part of the Russian government effort to help Donald Trump to the campaign, and therefore is a central issue that we need to fully investigate.