Paul Krugman points out the problems in rural America that need attention. Integrating rural America faced with problems of joblessness and a sense of being ignored are part of the effort to pull the nation together. Krugman points to economic forces that have pushed the other way. Yet it is the role of government to support farming communities and farmers in what was till the 1950's and 1960's a nation that was both rural and urban. With the rise of tech companies in the last 2 decades problems of rural communities were pushed into the background.
The founders of the U.S. and the Continental Congress that drafted the U.S. Constitution did this had rural communities in mind in what was then in 1790's a largely rural country. Rural states have the same representation as larger more populous urban states under the U.S. Constitution making it impossible to ignore the rural areas and farmers without damaging the public interest.