We have two sets of polls released this morning, and either Obama has suddenly shot well ahead in some states, but are some of these numbers off?
First, let’s look at the pretty reasonable numbers. Quinnipiac surveyed Florida, showing Obama up 5%, 49-44%. That’s a bit higher than most recent polls, but it’s still within the realm of possibility. Both pollsters also surveyed Pennsylvania, with Quinnipiac showing Obama ahead there by 13% while the Big Ten Network shows him up by 11%. Again, both of those polls are well within reason.
The Big Ten Network also surveyed Illinois, which shows a 29% lead for Obama, Iowa, whish shows a 13% lead for Obama, Michigan, which shows a 22% lead for Obama - that’s quite large, but plausible given that McCain has completely pulled out of the state now - and Wisconsin with a 13% lead. All of those are at least inline with current polls or plausible given the situation.
Now, I’m separating out Ohio. At first I thought the Ohio numbers - Quinnipiac showing Obama up by 14% and Big Ten showing Obama up by 12% - were both wrong. But then when I looked at the recent Ohio numbers, Suffolk also had a recent poll showing Obama up 9%. the problem is that several other recent polls show numbers such as Obama by 4%, McCain by 2%, and McCain by 1%.
So what’s going on here? It looks like we’re now having the same problem in Ohio as we’ve had in the past in both Florida and North Carolina: two different sets of likely voter models, one of which is very favorable to McCain and one of which is very favorable to Obama. As a result, we have one grouping of three polls where the results range from +9 to +14 for Obama, and another grouping of three polls where the range is from +2 McCain to +4 Obama. Which is right? There really isn’t any good way to know. And we have reputable pollsters in each group as well.
My hunch is to actually agree with the polls showing a near-tied race. The first reason is because Quinnipiac has tended to show larger margins for Obama than other pollsters anyway. The second reason is that, at least this time around, the Big Ten polls appear to be greatly favoring Obama as well, as you’ll see in a second.
Next, on to the states where the polling definitely seems off, and both of these are Big Ten polls. There are a couple of states which seem just way off when looking at their numbers.
This poll shows Obama up 19% in Minnesota. This lead just seems way too big. Most polls in the state show the lead to be between about 6 and 12%. The Star Tribune at the start of the month was really the only recent poll showing such a margin, and their more recent numbers have narrowed it down to a more realistic margin.
Second, this poll shows Obama up 10% in Indiana. Now, having a poll showing Obama ahead in Indiana isn’t unheard of: the most recent PPP poll showed Obama up by 2% there. But by and large, most polls in the state have shown a consistent McCain lead in the state, not an Obama one, to say nothing about a double-digit Obama lead.
So I think Quinnipiac is either right or at least plausible on 2 out of 3 polls, but Big Ten blows it on at least 2 and as many as 4 of their 8 polls. Since I don’t make judgement calls about what polls I stick into the database, these are still going in, but I thought I would express my thoughts about these polls as I do.
