The Communist Manifesto's Road to Socialism through Democracy's COURTS SYSTEMS ?
No, not thru the courts, but instead by advocating popular majority rule over the rule of written law. It can be seen these days by popular ballot initiatives & propositions or amending state constitutions by majority vote--last years' pro-marraige state constitutional amendments are an excellent example here. It's all done by popular majority vote as opposed to electing representatives who would write & enforce the laws.
For what it's worth, that's my take on things anyway.