The effrontery of calling this move "unprecedented obstruction" is almost too much to bear.

These two nominees were caught in bald-faced lies to the Committee (https://theintercept.com/2017/01/31/senate-democrats-citing-lies-stall-votes-on-trumps-nominations-of-mnuchin-and-price/) and were recommended for confirmation anyway. It seems that those present for that vote, not those absent, were derelict in their duty.