Trump ex-campaign aide...
The White House declined to comment.
Mueller was appointed as special counsel in May to lead the Justice Department’s investigation into whether the Kremlin worked with associates of the Trump campaign to tip the 2016 election. The appointment came a week after the firing James Comey, who, as FBI director led the investigation, and also followed the recusal months earlier of Attorney General Jeff Sessions from the probe.
Investigators have focused on associates, including Manafort, whose home was raided in July by agents searching for tax and international banking records, and ex-national security adviser Michael Flynn, who was forced to resign in February after White House officials said he had misled them about his conversations with the Russian ambassador to US.