A senior Australian diplomat has said the government is "now ready to confirm" a series of events in 2016 between the country's high commissioner to the UK and a Trump campaign adviser, which led to US authorities investigating Donald Trump's links with Russia.
The release of the Australian diplomatic documents comes as a redacted copy of the final Mueller report is expected to be released on Thursday.
The London meeting between former high commissioner Alexander Downer and Trump adviser George Papadopoulos was first reported by the New York Times in December 2017, reportedly revealing how Downer had been told by Papadopoulos that Russia had political dirt on Hillary Clinton.
Until now, the Australian government and Downer have refused to confirm or give any details about the meeting central to the beginning of the Trump-Russia investigation, repeatedly citing the need to preserve national security.
But in a letter sent to Australia's Information Commissioner after a 15 month-long FOI battle with BuzzFeed News, a senior foreign official said his department was ready to confirm the meeting and release redacted documents, because Special Counsel Robert Mueller's investigation was now finished.
"I have again reviewed these matters and, while standing by the validity of the original decisions at the time they were made, the Department has reassessed its position in relation to Mr Di Stefano's three requests in light of the recent conclusion of the U.S. Special Counsel's investigation into Russian interference in the 2016 Presidential Election," the official wrote.
"Notably, in light of the conclusion of that investigation, the Department is now ready to confirm that a meeting occurred between Mr Downer and Mr Papdopolous (sic), on 10 May 2016, whilst Mr Downer was High Commissioner to the United Kingdom."
Included in the documents released to BuzzFeed News is a calendar invite, and a diplomatic cable Downer wrote about the meeting. The senior foreign official said Downer's cable had been heavily-redacted because the full contents could "reasonably be expected" to damage Australia's relationship with the United States.
The Outlook invite (shown above) organised for Downer on Tuesday, May 10, reads, "6:00pm – Meeting with George Papadopolous (sic), Adivsor (sic), Donald J Trump for President", and includes a link to Papadopoulos' LinkedIn profile.
The government also released a heavily-redacted copy of the diplomatic cable (below) Downer wrote to Canberra the day after the Papadopoulos meeting.
The cable titled "UK: US: Donald Trump - Views from Trump's Adviser [redacted]" runs to three pages and briefly outlines how the high commissioner met with Papadopoulos the previous evening to "discuss Trump's foreign policy priorities".
The foreign official said the rest of the cable has been redacted under Section 33(a)iii of Australia's FOI Act because it "could reasonably be expected to cause damage to international relations".
"Release of the full contents of this document could reasonably be expected to damage the bilateral relationship with the United States, and relationships with other partners with which we engage closely," the senior official wrote. "This would significantly impact the Department's ability to prosecute Australia's foreign policy interests."
Papadopoulos was one of three dozen people charged in Robert Mueller's special counsel investigation. He pleaded guilty to lying to the FBI and served a 12-day prison sentence.
Along with posting numerous tweets and appearing on US cable TV to complain about the Downer meeting, Papadopoulos has released a book called "Deep State Target: How I Got Caught in the Crosshairs of the Plot to Bring Down President Trump".
The foreign official’s letter was sent to Australia’s Information Commissioner. An earlier version of this article misstated the title of the direct recipient.