From DR’s link above...
“In July 2016, the Obama administration accepted unsolicited information from Alexander Downer, an Australian diplomat who just happened to have helped arrange a $25 million government donation to the Clinton Foundation years before. Downer said that he had witnessed a Trump campaign aide, George Papadopoulos, bragging about some dirt that the Russians supposedly had on Democratic candidate Hillary Clinton.
Though Downer’s claim was reported two-plus months after the alleged event, and was only hearsay gathered at a London tavern, the Obama administration gave it to the FBI which, in turn, thought it was weighty enough to justify opening a counterintelligence case against the lawfully elected Republican nominee for president.
In other words, the Democratic administration accepted dirt from a foreign friendly and used it to justify investigating its GOP rival.
And then, OMG, they did it again just a few weeks later.”