The White House czars are presidential assistants charged with responsibility for given policy areas. As such, they are among the president’s closest advisers. In many respects, they are equivalent to the personal staff of a member of Congress. To subject the qualifications of such assistants to congressional scrutiny — the regular confirmation process — would trench upon the president’s inherent right, as the head of an independent and equal branch of the federal government, to seek advice and counsel where he sees fit…

In the absence of legislation (such as that creating the Office of Drug Control Policy, whose director is the “drug czar”), the only power exercised by White House czars comes from their proximity to the president and the access this provides. Yes, as many will note, that truly is power. But it is not significant authority under U.S. law — which only the Constitution or Congress can confer.