I don't think the evidence of presidential influence on growth rates is enough to support the contention (in either direction). Yes, famously, the economy grows better under democratic presidents - but that's a very small sample, with no clear causality. But certainly enough to reject the idea that a Romney presidency would be necessarily better for the economy.
Don't let your minds be killed, but I was wondering if there were any existential risk angles to the coming American election (if there isn't, then I'll simply retreat to raw, enjoyable and empty tribalism).
I can see three (quite tenuous) angles:
But these all seem weak factors. So, less wronger, let me know: are the things I should care about in the election, or can I just lie back and enjoy it as a piece of interesting theatre?