House Democrats Launch an Investigation Into Kushner.

House Democratic investigators are launching a congressional probe of Jared Kushner's use of a private email for work purposes, a development that threatens to escalate the Russia-related controversies already surrounding President Donald Trump's son in-law.

Top House Oversight and Government Reforming Committee Democrat Elijah Cummings sent a letter to Kushner, a White House senior adviser, asking him to preserve all his personal emails. The Maryland Democrat also requested all copies of work correspondence that passed through Kushner's personal account.

Those documents are supposed to remain on a work email, per federal record-keeping laws.

“Before requesting copies or calling for the public release of all official emails you sent or received on your personal email account, I first request that you preserve all official records and copies of records in your custody or control and that you provide the information requested below,” Cummings wrote. “Your actions in response to the preservation request and the information you provide in response to this letter will help determine the next steps in this investigation.”