Andrew Sullivan reacting to yesterday's DOMA ruling:

It took a federal judge to put two and two together. The Defense of Marriage Act was an assault on the core right of the states to define civil marriage as each sees fit; it was ... drum-roll please ... an assault on the Tenth Amendment! ... And so one of the principles held most dearly by some of the tea-partiers must logically hold DOMA unconstitutional. Much more on this tomorrow. But let me note right now the political ironies of this. The right is hoist on their own federalist petard and will now have to choose whether states' rights or marriage inequality is more important to them. The Obama administration, meanwhile, now has to decide whether it will further defend DOMA in the courts, fighting against the principles of the tenth amendment so dear to conservatives or the fifth amendment so dear to liberals. The incoherence of the Republicans and the cowardice of the Democrats are now exposed more than ever.

And Andrew has posted a great roundup of reactions to the DOMA ruling here.