Independent presidential candidate Robert F. Kennedy Jr. announced Nicole Shanahan‚ a 38-year-old attorney and philanthropist‚ as his running mate last week. Outside of Silicon Valley‚ Shanahan is a relative political unknown‚ though as the ex-wife of Google co-founder Sergey Brin‚ she brings considerable financial assets to the ticket. Reaction to the pick has been mixed‚ however — especially among a constituency RFK Jr has courted: libertarians. In a recent interview‚ Libertarian...