Stephen Miller is a senior policy adviser for President Trump.
Miller was interviewed by Robert Mueller, and was reportedly questioned about his role in the firing of former FBI Director James Comey as part of Mueller’s investigation into the possibility of obstruction of justice. Miller aided Trump in drafting a memo explaining his motives in firing Comey, although this memo was never published due to concerns from White House lawyer Don McGahn. Miller’s reported attendance at the March 2016 meeting during which Papadopoulos offered to arrange a meeting between Trump and Putin has also drawn attention from investigators. (Photo credit: Alex Wong / Getty Images)