They're called presidential "advisers," or "cabinet agency deputies." But critics call them "czars" -- presidential appointees who carry a great deal of clout in an administration.
Since taking office, President Obama has appointed some 40 czars - more than any other president. These appointees are controversial because they don't have to be confirmed by the Senate, and they're not subject to congressional oversight.
Author Robert Knight has written a new book about these czars called Radical Rulers - The White House Elites Who are Pushing America Toward Socialism.
Knight spoke to CBN News about several of the presidential appointees and his concerns with the views they represent. Click play to watch.