Michael Graham Richard provides an overall picture of electric vehicle manufacturer Tesla's ongoing battle with auto dealers over its direct sales model. The article includes a map/infographic that shows, state-by-state, where Tesla's sales model is legal (the map also includes other critical information with regard to Tesla, like the location of service centers and superchargers).
Right now, 28 states ban direct sales, 20 allow it, and two states are currently involved in legal action with Tesla to possibly overturn the ban. Missouri for instance, recently made news by almost passing legislation that would have blocked sales in the state.
The article also includes links to a detailed archive of coverage of the evolving issue.