It's nice to see Reason, the voice of mainstream American libertarianism, getting behind this idea. I think it's possible to win over significant elements of the left as well (although you'd probably have to fight labor and others that benefit from the current political structure). I've thought for a while that a libertarian/liberal alliance makes far more sense and could shake the American political system far more effectively than the current structure where the libertarians are unhappy puppets of the Republicans. This is the issue that could make it work.
