Oops! He did it again

John McCain continues his why-is-my-opponent-so-popular theme:

UPDATE: This return fire from Obama may yet turn out to be more significant, because I think the week has seen two competing memes, either of which could do serious damage if it takes hold: Presumptuous Obama vs., um, Really Bad Liar McCain. This ad feeds both (Who thinks it’s a good idea to tag the ads “Barack Obama. President.”?), but obviously it’s designed to push the second closer to a tipping point.

Incidentally it’s pretty clear the Obama camp turned their ad around in a lot less than a day. Who’s going to be agile enough to move that quickly in the next Canadian election cycle?