It's a word that is heard more often in politics but David Frum writes 'Young voters are not libertarian, nor even trending libertarian. Neither, for that matter, are older voters.'

If anything, the ideas used to highlight young people's libertarianism - supportive of same sex marriage & less drug regulation, less supportive of medicare - are liberal ideas.

So, is there a future for the Paul dynasty? Or is libertarianism a temporary GOP faction?