The scale of the FBI's interest in some of America's most powerful political fixers - one of them a sitting governor - underlines just how difficult it will be for Clinton to shake off the taint of scandal if she enters the White House.
There are, in fact, not one but five separate FBI investigations which involve members of Clinton's inner circle or their closest relatives - the people at the center of what has come to be known as Clintonworld.
The five known investigations are into: Anthony Weiner, Huma Abedin's estranged husband sexting a 15-year-old; the handling of classified material by Clinton and her staff on her private email server; questions over whether the Clinton Foundation was used as a front for influence-peddling; whether the Virginia governor broke laws about foreign donations; and whether Hillary's campaign chairman's brother did the same.
The progress of the Clinton Foundation investigation and that into McAuliffe was first reported by the Wall Street Journal.
The FBI does not generally comment on investigations, so it is entirely possible there are more under way.
Here are the advisers and consiglieri - and how the FBI is looking at them