Could Broyles win Oklahoma County with this margin?
Absolutely.
That's what I would think. Inhofe has never lost Oklahoma County before, but this year could break that. Moreover, the county map this year will be vastly different from that of 2008, which is the last time that Inhofe faced even a remotely competitive Democratic opponent. That year, Inhofe carried Oklahoma and Tulsa Counties, while beating Andrew Rice 57-39%. Rice won four rural counties (Cherokee, Muskogee, McIntosh, and Oklmulgee) and did relatively well in Little Dixie. This year, Inhofe will win those four counties and will crush Broyles throughout Little Dixie (and elsewhere in the state), but could lose Oklahoma County decisively and carry Tulsa County by less than his statewide average.