While often categorized as a democracy, the United States is more accurately defined as a constitutional federal republic. ... “Federal” means that there is both a national government and governments of the 50 states.
the US is in fact a republic, you can argue it, but that doesnt make you any more right, you can fail to do the research and find the facts, that too doesnt make you any more right
go read the constitution, and report back to me...