Frankly, I lack the subtlety to infiltrate much of anything - and therefore have always taken the direct approach.
The cyphers who remain in the Republican Party, IMO, would not be difficult to oust. It is the money that supports them and the Lame-stream media that "legitimizes" them that needs to be quelled.
My money, what little I have to spare, goes to causes I support unreservedly - FR, my parish, Pro-Life causes, etc.
America demands Justice for the Fallen of Benghazi!
Genuflectimus non ad principem sed ad Principem Pacis!
Listen, O isles, unto me; and hearken, ye people, from far; The LORD hath called me from the womb; from the bowels of my mother hath he made mention of my name. (Isaiah 49:1 KJV)