Some people think so, and it's perfectly believable, but the counter explanation sounds perfectly plausible as well. The Obama campaign's ham-handed response to the initial accusation, a response that seemed to confirm the worst, didn't help. Yet it doesn't seem to me to be sufficiently a sure thing, given the fuller explanation, to get worked up over. There are plenty of things we know, for sure, about Barack and his party, to not want him President.