There are fresh revelations this morning after WikiLeaks released a new batch of Clinton campaign chairman John Podesta's hacked emails.
An email from 2015 shows Hillary Clinton's top aide and lawyer Cheryl Mills writing to Podesta, "we need to clean this up," an apparent reference to communications between President Obama and Hillary Clinton in which she had used her private email server.
"He has emails from her - they do not say state.gov," Mills continued.
The email from March 7, 2015 was sent after news broke that Clinton had used the private server while she was secretary of state.
Obama said in multiple interviews that he didn't know Clinton was using the private server and learned about it from news reports.