I have given up hope that the US will be reformed through the political process. The deck is stacked against liberty. Only through secession--itself inspired by examples from abroad--will freedom spread in the region currently called the United States of America.
Here is an interesting start on this topic. Yes, right now it's just chit chat, but at some point it will become a reality. If nothing else, once we start colonizing space, there will definitely be libertarian settlements.
But how will these places protect themselves from neighboring governments? Read the book. Oh, you'd rather a nice story? Okay.