kakistocracy
noun
government by the worst persons; a form of government in which the worst persons are in power.
The grammatical form denoting more than one person, place, thing, or idea.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The plural is kakistocracies, the dictionary added, in case the world one day ends up with two of them.
From Seattle Times ● Apr. 13, 2018