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The point wasn't to give you any "black hat/white hat" information on Senator Sununu. The point was to move you into doing a little research on your own and coming to your own conclusions based on what you found.
Forcing Libertarians into any one stereotype (like calling them government fearing pot-smokers) doesn't help anyone, least of all yourself. The same can be said of any group.
One would hope that in an age where independent thought is at a premium, more people come to this conclusion outright.