Party or country?

[SunsetBengal]

(07-16-2017, 07:23 AM)Belsnickel Wrote: We have a two party system because of Duverger's Law.

Ok, I had to look that term up.  Now I have to ask, do we have a two party system because of Duverger's Law, or because of single member districts?  Seems to me like the US has been in a two party system since before Duverger came up with his theory.  Seems to me that Duverger's "Law" is simply a theory based on an observation of the habits of a single member district system.