In another so far futile attempt to incriminate President Trump former White House adviser Hope Hicks was questioned Wednesday about Mueller report episodes and Democrats were obstructed again. in this case, they were denied access to any relevant testimony by law since according to an opinion released in May 2019 by the Office of Legal Counsel or OLC the immunity of the President’s immediate advisers from compelled congressional testimony on matters related to their official responsibilities has long been recognized and arises from the fundamental workings of the separation of powers defined in the US Constitution. House Judiciary Committee Republican Representative Doug Collins of Georgia describes the situation as follows.