White House ethics officials learned of Trump’s repeated use of personal email when reviewing emails gathered last fall by five Cabinet agencies to respond to a public records lawsuit. That review revealed that throughout much of 2017, she often discussed or relayed official White House business using a private email account with a domain that she shares with her husband, Jared Kushner.
The discovery alarmed some advisers to President Trump, who feared that his daughter’s practices bore similarities to the personal email use of Hillary Clinton, an issue he made a focus of his 2016 campaign. He attacked his Democratic challenger as untrustworthy and dubbed her “Crooked Hillary” for using a personal email account as secretary of state.
Using personal emails for government business could violate the Presidential Records Act, which requires that all official White House communications and records be preserved as a permanent archive of each administration. It can also increase the risk that sensitive government information could be mishandled or hacked, revealing government secrets and risking harm to diplomatic relations and secret operations.
Side note that I didn't and don't like Hillary Clinton. I don't think Clinton was in the right about how she handled her emails, But dang, can we at least point a finger at the utter shamlessness and hypocrisy of the Trump administration in continuing to whine about Clinton and alowing the cult at his rallies to shout "Lock Her Up" when his own family has done the same dang thing?