You missed it. Currently, your eligibility to be married or have a drivers license is determined at the state level. Barr and the Liberatrian party says it should stay there and not become a federal issue.
Where it gets a bit gray though [marriage not the Libertarians] is that if the federal government recognizes the resulting marriages of every state, and if there is state retroprosity [like driver's licenses]: now the most liberal state in marriage sets the law of the land.
I basically agree with the Libertartians on recognizing the Constitutions instructions to leave powers not specifically granted to the federal government in the hands of states, but don't know a way around the above quandry.

Of course, if national CCW retroprocity was in the same bill: let the homos have their hayday [even now I don't care what they do in there own bedrooms].
