Csarz?

"is a title used to designate certain European Slavic monarchs or supreme rulers." [https://infogalactic.com/info/Tsar]

The United States is a constitutional republic. The constitution doesn't allow for supreme rulers. That's a violation of the law.

Obama had csarz, he was also the son of a communist - Frank Marshall Davis and a professed socialist. Makes sense as to why he chose that path.