A cartogram is a map where some mapping variable is substituted for land area or distance. Cartograms are frequently used to depict cities or towns based on their population rather than their land area. This allows maps to accurately show the impact that large concentrations of people have on election results.
I have made several population-based cartograms of election results, depicting various states. A few examples are below.
I have also made cartograms for various statewide elections in Massachusetts and New York.