More on the bellwetherness of Vigo County, which has been correct in every presidential election but two since 1892:
Tom Steiger, a sociology professor at Indiana State University, said one plausible theory is that the county's population -- and therefore its culture -- has been very stable, with no large influx of new residents and no big population losses.
"So what is that culture?" Steiger said. "This has a long history of being a combination of rural and manufacturing-based, blue collar. A lot of that has changed, but the people are still here."
I dunno. Hillary Clinton beat Barack Obama in Vigo County worse than she did in the state as a whole (she got 59 percent there, and 50.5 in Indiana overall). Maybe this will be the third time since 1892.