In May 2016, a Trump foreign policy adviser, George Papadopoulos, told the Australian High Commissioner in London, Alexander Downer, that he had heard that the Russkies had “dirt” on Hilary Clinton. Downer immediately informed the Australian foreign ministry.
Six or seven weeks followed, during which time the Australian government did not inform anyone—officially or unofficially—that a hostile foreign power had breached the security of an American presidential candidate.
Christopher Steele had served in important positions in the British Secret Intelligence Service (MI-6), then had opened a private business intelligence company. He had served in Moscow and had been the head of the “Russia desk” for MI-6. In June 2016, the Democrats had hired his company to conduct opposition research on Donald Trump. Steele began investigating Trump’s Russian connections. Between June and December 2016, Steele wrote 17 memos. Steele’s memos suggested that a “well-developed” conspiracy linked Trump with the Russian government. The Russian would help get Trump elected; President Trump would then end the economic sanctions imposed on Russia for its actions in Crimea and Ukraine. Furthermore, the Russian possessed compromising personal information on Trump.
However, at this time, the FBI had no knowledge of Steele’s memos.
On 22 July 2016, Wikileaks began publishing the Democratic National Committee e-mails provided to them by the Russkies. At this point, the FBI learned from the Australian government of the report on Papadopoulos. [So, the FBI knew that the Russians had hacked the computers at the Democratic National Committee, that Russia was releasing stolen information through Wikileaks, and now had a report that the Trump campaign may have had fore-knowledge.] On 31 July 2016, the FBI opened an investigation of Trump-Russia collusion: “Operation Crossfire Hurricane.” The operation was conducted in great secrecy, with no leaks to the press.
After the launching of “Crossfire Hurricane,” the FBI sought a FISA warrant to surveil the communications of Paul Manafort, Michel Flynn, Carter Page, and George Papadopoulos. All four had varying degrees of prior contact with Russia. [The warrant application was denied as “too broad.”]
In September, Steele shared his memos with the FBI.
[In late September, Michael Isikoff reported that a Trump campaign adviser was being investigated over contacts with the Russians. The report was based on leaks.]
In October 2016, the FBI obtained a FISA warrant to surveil the communications of Carter Page. A part of the supporting evidence for the warrant application came from the “Steele dossier.”
Thus, William Barr’s investigation isn’t likely to turn up compromising information.
 “The origins of the Russia investigation,” The Week, 28 June 2019, p. 13.
 Apparently at the time when the Australian government was not informing the American government of the remarks by Papadopoulos.
 The FBI had begun an investigation of Manafort after his candidate, the pro-Russian Ukrainian Yanukovich, had been ejected from power in early 2014.
 Page had been investigated by the FBI in 20013-2015 and found blameless.
 But not Jared Kushner or Donald Trump Jr. or Donald Trump Sr. Why not?