And why exactly isn't he running on the Libertarian ticket this time around since Paul is in fact a libertarian? Kinda deceitful that he uses the (R) label to get noticed when everyone knows full well he won't support the eventual GOP nominee - and nearly half his support is coming from liberal and independent crossover voters.
I don't closely track how the Libertarian party subdivides itself (you know - there are RINOs within the Republican Party? Are how the Tea Party isn't the same as the Republican Party?).
However, some of the key cogs in Paul's own 'libertarian' group, who ran his organization and spoke for him, described themselves as "paleoLibertarians." They were supposed to be the Libertarians without the potheads, filling in that void with more "fear-the-New-World-Order" conspiracy types. And disgruntled militia types. And people who sign their emails with "BJB" for "Burn Jew Burn," and other, well, types that for *some reason* Ron Paul seems to attract.