The claim seems to have enraged the president, who denied it by tweaking the story of the meeting once again, tweeting that the meeting was "to get information" and that it was "totally legal" and that Donald Jr.is a "wonderful son". I did not know about it!'
The misdirection came amid a series of searing tweets sent from his New Jersey golf club, in which he tore into two of his favorite targets, the news media and Robert Mueller's ongoing investigation into possible links between the president's campaign and Russian Federation.
Trump Jr went on to blame the Democrats and cable news outlets for blowing the meeting with the Kremlin-connected lawyer, Natalia Veselnitskaya, out of proportion. Veselnitskaya wanted the meeting so they could talk about lifting Russian adoptions and possibly lifting sanctions if Trump were to win the election, while Trump Jr. expected useful information against Clinton.
The Trump administration maintains they believed the objective of the meeting was to get intelligence on Democratic nominee Hillary Clinton, however, they have since described the meeting as a "waste of time".
Sunday's tweet was Trump's clearest statement yet on the objective of the meeting, which has become a focal point of Mueller's investigation even as the president and his lawyers try to downplay its significance and pummel the Mueller probe with attacks.
Asked on Sunday why he had denied the President's involvement, one of Mr Trump's lawyers, Mr Jay Sekulow, told ABC that "I had bad information at that point".
"It doesn't mean illegality, it doesn't mean criminality", he said. The veracity of which is challenged by campaign finance law that states it is illegal for a foreign national to "directly or indirectly, make a contribution or a donation of money or other thing of value".
The meeting was standard opposition research. Sekulow said of Trump Jr.'s meeting.
Donald Trump Jr. stands onstage with his father then-presidential nominee Donald Trump after a debate against Democratic nominee Hillary Clinton at Hofstra University in Hempstead, New York, in September 2016.
Republican presidential nominee Donald Trump walks with former NY mayor Rudolph W. Giuliani and his son Eric Trump through the new Trump International Hotel in Washington on September 16, 2016.
Trump fired Comey in May 2017, several days after the then-FBI director told Congress that he could not comment on whether there was evidence of collusion between the Trump campaign and Russian Federation.
"I am comfortable in saying this: if there was evidence, strong evidence of collusion, I guarantee you it would have been leaked by now", the Republican senator said.
"The Russians offered damaging info on your opponent".
"But there's not a situation where it's just you say yes", Sekulow said. More specifically, Mueller has reportedly been looking at potential obstruction in Trump's tweets and other public statements targeting former Federal Bureau of Investigation directors James Comey and Andrew McCabe, as well as sitting Attorney General Jeff Sessions.
Trump has stepped up his public attacks on the Mueller probe since the first trial to arise from it began last week in Alexandria, Virginia, involving former Trump campaign chairman Paul Manafort.
"The president can't distinguish between any allegations of conspiracy against his campaign and the broader problem of Russian Federation continuing to interfere in our elections", Schiff said on CBS's "Face the Nation".
In another, he expressed frustration with both the media and Mueller's probe. They cited multiple unnamed sources. "I am providing a great service by explaining this to the American People".