Ive seen a dozen posts online this morning marveling at how hes now abandoned his referendum approach to the election i.e. vote for me because Obamas terrible in favor of a choice approach, but that doesnt remotely capture the boldness of this shift. Its not just that hes given Obama his wish by making the election a clear choice, its that hes made it a choice about the most momentous, fraught domestic policy dilemma the countrys faced in ages. Amazing. Awesome. Baffling. As someone on Twitter said this morning, imagine John Kerry in August 2004 suddenly deciding hed had enough of attacking Bush on Iraq and that it was time to make the election a battle over whether the U.S. should have single-payer health care. This is sort of like that.