Senior White House adviser Jared Kushner used a private email account for White House business, per Politco's Josh Dawsey. He used the personal account, set up during the transition in December, to correspond with former Chief of Staff Reince Priebus, former chief strategist Steve Bannon, economic adviser Gary Cohn and spokesman Josh Raffel.

Why it matters: Trump repeatedly, and effectively, slammed Hillary Clinton during the campaign over her use of a private email server while serving as Secretary of State.

Kushner's lawyer, Abbe Lowell, said: "Mr. Kushner uses his White House email address to conduct White House business. Fewer than 100 emails from January through August were either sent to or returned by Mr. Kushner to colleagues in the White House from his personal email account. These usually forwarded news articles or political commentary and most often occurred when someone initiated the exchange by sending an email to his personal rather than his White House address."