Paul vs. Hillary could reshape the electoral map in a way that hasn't happened since Nixon. It could also end in a Democratic walkover. It really depends on the issues the election is going to be about. I could see an anti-intervention, anti-espionage Paul getting the upper hand, especially if there are some Snowden-like leaks, or foreign policy incidents at just the right point in the campaign. In that case, Paul has a chance with groups like young voters that typically go D.
If the campaign is all about economy, you get a totally different election though.
If the campaign is all about economy, you get a totally different election though.