2 of 11
3 of 11
Weiner's estranged wife is Clinton adviser Huma Abedin. And in their look into Weiner's sexting allegations, which began on September 22, investigators from the FBI's New York field office discovered Abedin's emails on Weiner's laptop -- with initial data showing those emails went through Clinton's server.
4 of 11
It was enough to lead FBI Director James Comey to conclude the emails would need to be reviewed to see if he'd need to reopen the investigation he'd closed in July on whether Clinton kept classified information on the private email server she used during her tenure as secretary of state. Comey was made aware of the emails' existence by mid-October, law enforcement sources have said.
5 of 11
6 of 11
The FBI discovered emails sent to or from Abedin -- one of Clinton's longest-serving and most-trusted aides. But it's not clear whether those are the same emails the FBI already reviewed in its investigation into Clinton's private email server that concluded in July with an admonition from Comey -- but no recommendation of charges.
7 of 11
There could be additional emails that Clinton didn't turn over to the State Department and the FBI didn't discover during its investigation. Even if any such emails exist, it still might not mean much because they could be personal in nature. Comey wrote to Congress that "the FBI cannot yet assess whether or not this material may be significant."
8 of 11
In his letter to Congress, Comey all but guaranteed the FBI wouldn't be done with its review prior to Election Day. He said he "cannot predict how long it will take us to complete this additional work" -- and since the initial investigation took months, completing even a smaller version in less than nine days is improbable.