The hot Donnie-news today is what got the FBI started on the Russia investigation. It turns out it was Papadopoulos blabbing to an Australian diplomat.

During a night of heavy drinking at an upscale London bar in May 2016, George Papadopoulos, a young foreign policy adviser to the Trump campaign, made a startling revelation to Australia’s top diplomat in Britain: Russia had political dirt on Hillary Clinton.

About three weeks earlier, Mr. Papadopoulos had been told that Moscow had thousands of emails that would embarrass Mrs. Clinton, apparently stolen in an effort to try to damage her campaign.

Exactly how much Mr. Papadopoulos said that night at the Kensington Wine Rooms with the Australian, Alexander Downer, is unclear. But two months later, when leaked Democratic emails began appearing online, Australian officials passed the information about Mr. Papadopoulos to their American counterparts, according to four current and former American and foreign officials with direct knowledge of the Australians’ role.

The hacking and the revelation that a member of the Trump campaign may have had inside information about it were driving factors that led the F.B.I. to open an investigation in July 2016 into Russia’s attempts to disrupt the election and whether any of President Trump’s associates conspired.

July 2016. That early.

The information that Mr. Papadopoulos gave to the Australians answers one of the lingering mysteries of the past year: What so alarmed American officials to provoke the F.B.I. to open a counterintelligence investigation into the Trump campaign months before the presidential election?

It was not, as Mr. Trump and other politicians have alleged, a dossier compiled by a former British spy hired by a rival campaign. Instead, it was firsthand information from one of America’s closest intelligence allies.

Via one of Trump’s own people, babbling as he sucked down the gin. The FBI, on the other hand, did the opposite.

Once the information Mr. Papadopoulos had disclosed to the Australian diplomat reached the F.B.I., the bureau opened an investigation that became one of its most closely guarded secrets. Senior agents did not discuss it at the daily morning briefing, a classified setting where officials normally speak freely about highly sensitive operations.

There was debate about whether to go public or not, and the agency decided not.

Ultimately, the F.B.I. and Justice Department decided to keep the investigation quiet, a decision that Democrats in particular have criticized. And agents did not interview Mr. Papadopoulos until late January.

So we’re now living in Putin’s world.