On the other hand, I think TPM Reader LF sums it up really well:
Politically, it might have been advantageous if the President had kicked Romney in the balls, and certainly cathartic for a lot of people. But he the reason he did not do it was not because of any lack of intestinal fortitude, it was clearly a political judgment. We will see where it goes from here—maybe it’s a disaster-but it should be argued based on its merit as political calculation, not Democrats typical cries that he needs to be tougher.Mittens told a number of untruths last night. Letting him talk and talk and talk I don't think is a bad decision on part of Obama's campaign. The next step is now to make Romney own it.