I don’t personally know any Libertarians that want anarchy, but I know more than one that are big on very Constitutionally Limited Government.
(They both plan to vote for Trump, (again) too, even though they wish he was more Libertarian..)
A lot of Libertarian voting seems to be focussed on Primaries and messaging, but a great many of them are Trump voters, too.
Why else attempt to divide them from the rest of his supporters?
~Easy
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There's a big difference between a "Libertarian" and a "libertarian".