Special counsel Robert Mueller has reportedly started interviewing White House officials as part of the probe into ties between Trump campaign associates and Russia, The Hill reports.
Fox News reported Friday that retired Lt. Gen. Keith Kellogg, the chief of staff for the National Security Council, was interviewed on Thursday. Kellogg was shown information and asked questions related to President Trump’s former national security adviser Michael Flynn.
Flynn resigned in February after reports he misled senior members of the White House about his contacts with Russian officials.
Congressional investigators are also looking at a Trump campaign meeting in March 2016 about national security that took place at the site of what is now Trump’s hotel in Washington, D.C., Fox News reported.
Prosecutors from Mueller’s team reportedly told former Trump campaign manager Paul Manafort to expect an indictment when they raided his home with FBI agents in July, a sign that the investigation is speeding up.
Manafort, who was fired from the campaign last summer, is one of the central figures in the special counsel probe as prosecutors continue to scrutinize his possible ties to Russia, lobbying work overseas and other previous business transactions dating back as far as 11 years.