Donald Trump Jr, along with the former Trump Campaign Chairman, Paul Manafort, are scheduled to testify publicly before the American Senate, on 26 July.
The President’s eldest son and his former top Campaign Aide will appear before the Senate Judiciary Committee, as further scrutiny mounts of the Trump Campaign’s connections to Russia.
A Spokesman for Manafort said: “We just received the letter and we’re reviewing it. We have nothing else to add.”
A Spokesman for Trump Jr, did not immediately respond to a request for comment.
Their testimony comes less than two weeks after it was revealed that the two, along with Jared Kushner, a top White House Aide and Trump’s son-in-law, met with a Kremlin-linked Lawyer, in 2016, who offered Trump Jr, negative information about Hillary Clinton.
Kushner is expected to testify in a closed session before the Senate Intelligence Committee, on 24 July.