The governor of Arkansas deals with both rural and urban issues and has a good cross section of what makes up this country.
No, NYC is not a cross section of the US, but neither is Arkansas, and of the two, I'd say NYC gets closer to more of the population.
Absolute number of people is not the determining factor in any of this, but with no major cities in Arkansas, I reject the notion that Bill Clinton's governorship gave him experience with urban issues.