@thismeintiel
Technically you are correct, but it would be all but impossible. I don't think there has ever been a Republican to win the White House who didn't carry Ohio. Hell I think it is worse then that. When it comes to that fact it can be what amounts to being a self fulfilling prophecy. Losing Ohio could suppress turnout in western states, because it makes the whole election out to be a foregone conclusion. Republicans stay home, and Democrats turn out in droves. It is a terribly slim margin at best.
I wouldn't fault the polling methodology either. Typically more Ohioans identify themselves as Democrats then they do Republicans. You should think of that as more of a default position then something that is carved into the bedrock. Ohio is a swing state, because that middle does indeed swing. Someone identifying themselves as being a democrat doesn't mean they vote solidly Democratic, or indeed Republican voting solidly Republican. I know Democrats who haven't voted Democratic in a presidential election in twenty years.
As for your supposition about turnout I have to say based upon my personal experience you have one hell of a pipe dream going on there. Firstly everyone in this state knows their votes count, and secondly we have been super saturated. They have pulled out every trick in the book to get us to the polls. Even if there is going to be some kind of suppressed turnout it isn't going to be in favor of Mitt Romney. I live in rural Ohio where the turnout is strongly Republican, and I will tell you this now the Obama supporters are being far more vocal then Romney supporters on the whole.
I would describe one camp as being overly excited, and the other as being very subdued. They just don't seem to be very excited about their candidate. It is like they plan to vote for him, but it is like they really don't want to do that. I don't see the Obama supporters having problems with getting to the polls. I could very easily see some Romney supporters just not being able to summon the will.
Either way I don't see it making much of a difference unless the vote becomes exceedingly tight. Any kind of suppressed turnout isn't going to offset a lean in the electorate as a whole. I mean if fifty three percent of the electorate is voting for the president it doesn't matter if the base shows up in force or not.
Anyway take it for what it is worth, but from what I have seen Romney supports are comporting themselves in the same way that Kerry, Gore, and McCain supports did before those elections. I keep running into supporters of the president making a case for their guy, and the most I have gotten out of a Romney supporter is they don't trust Obama. I mean that is terribly vulnerable right there. That is just a real fucking bad sign. If you have one group spreading the word, and the other withdrawing.
Elections aren't just won or lost in the mind they are won and lost in the heart. The side with more heart has the most important edge of all. In Ohio that is the kind of thing that can swing an election. Anyway I will tell you if I come across a evangelical Romney supporter. It would be interesting to see some kind of life.