About it writes The New York Times, referring to a senior representative of the US administration.
Sullivan's candidacy will have to be approved by the Senate.
Earlier it became known about the resignation of US Ambassador to Moscow John Huntsman.
In mid-August, Trump in a telephone conversation informed Russian leader Vladimir Putin about Huntsman's upcoming resignation.
The American Chamber of Commerce commented on the 360 channel about the resignation of the diplomat.
According to the media, among the possible candidates for the post of US ambassador were DPRK special envoy Stephen Bigan and US ambassador to Germany Richard Grenell.