US President Donald Trump’s son agreed to meet a Kremlin-linked Russian lawyer last year after being promised damaging information about Hillary Clinton.
Donald Trump Jr said he met Natalia Veselnitskaya but that “no meaningful information” on Mrs Clinton was shared.
Also at the meeting in 2016 was the president’s son-in-law Jared Kushner and then-campaign head Paul J Manafort.
US officials are investigating alleged Russian meddling in the US election.
The FBI and congress are both looking at whether Trump campaign officials colluded with the alleged Kremlin plot. The inquiries have yet to show evidence of collusion.
The meeting with ms Veselnitskaya took place on 9 June 2016 at New York’s Trump tower, just two weeks after Donald Trump secured the republican nomination.