Don't expect President Donald Trump to be tweeting "Crooked Jared" anytime soon. Trump called his presidential rival, Hillary Clinton, "Crooked Hillary" during the presidential campaign and afterward because she used private e-mail to conduct government affairs when she was secretary of state. The Justice Department did not press charges against Clinton, although Trump vowed to if he was elected.

But now there are revelations that Jared Kushner, a senior Trump advisor married to the president's daughter, Ivanka Trump, has been using private e-mail to conduct White House affairs.

Politico first broke the news Sunday, and Kushner's attorney has verified the story.

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

It was not immediately known if classified data was transferred on the private account, which was set up in December. Kushner, who is the president's son-in-law, has been under scrutiny in the Russia probe, and the latest developments could be new fodder for investigators. According to Politico:

Aides who have exchanged emails with Kushner on his private account since President Donald Trump took office in January include former chief of staff Reince Priebus, former chief strategist Steve Bannon, National Economic Council director Gary Cohn, and spokesman Josh Raffel, according to emails described to or shown to POLITICO. In some cases, those White House officials have emailed Kushner’s account first, said people familiar with the messages. At times, Bannon and Priebus have also used private email accounts to correspond with Kushner and others.

Lowell said that Kushner has not violated any record-retention laws because the e-mails are forwarded to his government account.

Politico said that other White House officials have used Signal and Confide to conduct business, "prompting former press secretary Sean Spicer in February to issue a warning to communications staffers that using such apps could violate the Presidential Records Act."