Russian ambassador Sergey Kislyak said, Censor.NET reports citing The Washington Post.
Ambassador Kislyak reported to his superiors in Moscow that Jared Kushner made the proposal during a meeting on Dec. 1 or 2 at Trump Tower, according to intercepts of Russian communications that were reviewed by U.S. officials. Kislyak said Kushner suggested using Russian diplomatic facilities in the United States for the communications.
The meeting also was attended by Michael Flynn, Trump's first national security adviser.
The White House disclosed the meeting only in March, playing down its significance. But people familiar with the matter say the FBI now considers the encounter, as well as another meeting Kushner had with a Russian banker, to be of investigative interest.
Kushner's apparent interest in establishing a secret channel with Moscow, rather than relying on U.S. government systems, has added to the intrigue surrounding the Trump administration's relationship with Russia.
The discussion of a secret channel adds to a broader pattern of efforts by Trump's closest advisers to obscure their contacts with Russian counterparts. Trump's first national security adviser, Flynn, was forced to resign after a series of false statements about his conversations with Kislyak.