Two months after the meeting in London, Australian officials passed the information to their American counterparts when leaked Democratic emails began appearing online, according to the newspaper, which cited four current and former United States and foreign officials.
Since then, several current and former associates of the president have been exposed for their own link [VIDEO]to Russian Federation during the investigation, with new information being reported by The New York Times on December 30.
The Times reported that the meeting between the Australian high commisisoner and the Trump aide was arranged through Israeli connections.
"It was not, as Mr Trump and other politicians have alleged, a dossier compiled by a former British spy hired by a rival campaign".More news: Israel's Netanyahu eyes trade, defence ties on India trip
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That investigation went on to haunt Donald Trump, who fired FBI director James Comey for refusing to curtail it, and is now dealing with a special counsel probe into potential collusion between Russian Federation and his presidential campaign.
Rick Gates, a business associate of Mr Manafort who worked as his deputy on Trump's campaign, has been charged with unrelated crimes and has pleaded not guilty.
He is the current champion of anti-Trump supporters and American liberals, but Alexander Downer's elevation to global hero may prove more than amusing for many Australians.
Papadopoulos apparently shared information provided to him by Joseph Mifsud, a London-based professor with ties to Moscow officials, who told him that the Russians had "thousands of emails" obtained by hackers from the Democratic National Committee (DNC) that had yet to be released.
Mr Papadopoulos is now reportedly assisting the Mueller probe.
A former senior official in the George W. Bush administration said revelations about Australia's role in the Trump-Russia probe opens a new set of problems for the White House.
Australian prime minister Malcolm Turnbull is scheduled to visit the US next month, but he's "not at all" anxious that new reporting on his nation's role in launching the probe would damage his relationship with President Donald Trump. Renato Mariotti, a former federal prosecutor, tweeted: "it will be hard for the Trump team to continue to portray Papadopoulos as a low-level volunteer who had limited access". He is now cooperating with the Mueller investigation.