The article describes their significance in numerical terms, does it not?
I think it was Michael Medved who described libertarians as "losertarians", whose exclusive, indignant insistence on a few odd notions can be enough to swing major elections.
Not only that, one suspects that Dems might pose as libertarians to pry enough votes from GOPers to lose the election for both.
That's rich, coming from a guy who was offended by the term 'RINO'.