The US seems to be becoming divided among lines

[mmonk]

not clearly represented by the two parties. I would say things are starting to divide as follows:

1. Libertarian, constitutionalists, isolationists.
2. Liberal, constitutionalists, traditional democrats.
3. Religious fanatics, rightwingers calling themselves conservative republicans, corporate interests, neoconservatism
4. Conservatives calling themselves moderate democrats, corporate interests, neoliberalism/neoconservatism

We need constitutional government now more than ever. Only 3 & 4 seem to be represented on a large scale.