This is why the right is freaking out about the polling at the moment. They were relying on the economy to keep Obama's voters disinterested and disenchanted. What's clear is that since the DNC, the Democratic base is enthusiastic and has at worst closed the enthusiasm gap the GOP had been talking about all year as being the foundation of their victory.
They simply cannot believe that the base is enthusiastic, let alone anywhere near 2008 levels... the fervor is gone, but that doesn't mean the energy has too.
Because no one seeing it after the convention bounce. Fundraising hasn't been there. It's not showing up in strongly approved numbers. Democratic registration seems like it is down (it is in FL and NC, where I've checked.)
Well we haven't seen September fundraising yet, there's a very clear reason why registration in FL is down.
Strongly approve might suggest something, that's a fair point, but as I said, enthusiasm doesn't have to be dramatic enthusiasm, as I said, the fervor is gone. There are segments of Obama's base who have been disappointed by him, so they approve of him, but aren't head-over-heels in love with him like they were.
There are plenty of ways to prove the GOP no longer has the clear edge on enthusiasm they had 4 months ago. Of course, having a terrible GOP nominee helps. The Romney strategy was to hope people were so angry, they'd go for an alternative without really thinking about it.