From The Democratic primary ruined my friendship!:
By Pete Brown
This year is different. It’s a split between liberalism and the left, between those who seek greater representation within the existing system and those who would replace it entirely. Liberals can’t understand why those to their left refuse to recognize that incremental progress is better than none, particularly given the intolerable danger of the modern GOP. Leftists are increasingly convinced that liberals, ever eager to compromise, aspire to nothing beyond a more diverse ruling class and are thus obstacles to revolution.