I can adopt many Libertarian concepts and attitudes without being part of a Party.  

Geo Washington was the first President to say that parties were  a big problem in this country.  The Democratic-Republican Party led by Jefferson, and Hamilton's Federalist Party.

Farewell Address.

"the common and continual mischiefs of the spirit of party are sufficient to make it the interest and duty of a wise people to discourage and restrain it.
It serves always to distract the public councils and enfeeble the public administration. It agitates the community with ill-founded jealousies and false alarms, kindles the animosity of one part against another, foments occasionally riot and insurrection."