Trump Justice Department subpoenaed Apple for data from House Intelligence Committee Democrats, sources say

(CNN) Prosecutors in the Trump administration Justice Department subpoenaed Apple for data from the accounts of House Intelligence Committee Democrats -- including Chairman Adam Schiff -- along with their staff and family members as part of a leak investigation, an Intelligence Committee official and a source familiar with the matter confirmed to CNN.
The prosecutors, the New York Times first reported , were looking for the sources behind news stories about contacts between Russia and Trump associates.
Those subject to subpoenas were notified in May by Apple that the Justice Department had issued grand jury subpoenas in February 2018 for their information, the House Intel committee official said.
"The Committee has continued to seek additional information, but the Department has not been forthcoming in a timely manner, including on questions such as whether the investigation was properly predicated and whether it only targeted Democrats," the committee official told CNN.
News of the subpoenas marks just the latest disclosure about the Trump administration's heavy-handed tactics toward leak investigations.
The development follows a series of revelations about the Justice Department secretly obtaining records from journalists, including CNN's Barbara Starr , as well as reporters from The Washington Post and other news organizations.