Washington (CNN)Donald Trump has inflicted a dark night of the soul on many conservatives. As the GOP establishment slowly coalesces around the presumptive nominee, the foot soldiers of the movement face an agonizing dilemma: whether to line up behind a candidate many members view as a ideological heretic or to stay true to their principles and reject him -- even though doing so could help Hillary Clinton claim the White House. The self-reflection is particularly acute for members of the influential Council for National Policy, an umbrella network of conservative activists -- the membership of which has been largely secret but can now be exclusively revealed to a greater extent than ever...