We divided the nation’s under 65 population into five groups, from those living in the most insured counties to those living in the least insured counties. When we looked at how those counties voted, we could see that there is a positive correlation between geography, health insurance coverage and the presidential vote in 2008. Generally, as the rate of uninsured residents in a county rises, so does the vote for John McCain. This is more true in rural counties than in urban counties.