Coal mining county with historically unionized Democratic roots. Duckworth won over Illinois' historically D areas that have drifted away from national Dems as the years have passed.
Yes--- this is the correct answer.
Additionally as in many other Ancestral Coal Mining Counties in Appalachia, these jobs have been not only "Double-Breasted" to Non-Union Mines within Appalachia, but increasingly supplanted by massive automated Mines in Wyoming and Montana, let alone other Countries such as Australia that use similar methods of Coal Mining as is the case in the American West.
Gallitin County is yet another example of Bill Clinton's betrayal of the UMWA, during the early '90s, where we were expecting at least a Democratic President to stand with the Union and against the Bosses, but alas that did not happen under the Neo-Liberal Democratic Administration....
Is it any wonder that Coal Miner retirees in their '60s (Young folk move away for jobs and opportunities, just like Timber workers in Oregon) swing heavily 'Pub?