Romney's short list: Portman is case study in campaigning for VP

At the edge of the Alt farm cornfield, Ohio Sen. Rob Portman gets a firsthand look at the impact of a punishing drought.
"These guys have crop insurance, which will cover most of their losses," Portman says of the Alt family, which has been farming this land since 1959. "But going forward, we need to prove predictability and certainty with a new farm bill."
On the one hand, Politics 101: a freshman Republican senator still not very well known statewide, back home for a visit with constituents.