Investigators have begun questioning White House staffers as part of the special counsel’s Russia probe, two sources confirmed to Fox News. Sources said that retired Lt. Gen. Keith Kellogg, the chief of staff for the National Security Council, was interviewed on Thursday. Questioning covered former national security adviser Mike Flynn, who resigned in February and who helped bring Kellogg onto the Trump transition team. Special Counsel Robert Mueller’s team had been expected to start interviewing White House staffers, having already sought a wide variety of documents related to their probe of Russia’s attempted meddling in the 2016 election. Meeting with my national security team in #WashingtonDC.

Source: Fox News September 29, 2017 21:56 UTC