There are already two Democrat Parties. They just have different names.
Do you mean the CPUSA, the SPUSA, and The Green Party...or did you mean the Democratic Socialists (DSA) and the National Socialists?
(of course that's way more than two)
There is really only one party, the DC party and it is all about screwing the public to support big corporations. We are very close to becoming a fascist country. I define fascism as big government allying with big business to promote more big government and more big business while at the same time eroding individual rights. We are very close with our current DC cronyism government.