It's got to the point in the campaign where they can no longer just refer to the issues but they now have to use other tactics. However, Clinton isn't exactly doing herself any favours with her sarcastic speech on 'the heavens opening'. Obama has at least refrained from retaliating in kind, which is something in his favour.
Still, I'm not an expert on domestic politics or elections. Foreign policy is more my area.
Which online publication? I try to keep up with most of them as well as various newspapers but some slip through the cracks.