Tesla doesn't have dealers.
More info: https://en.wikipedia.org/wiki/Tesla_US_dealership_disputes#U...
Most (all other?) car manufacturers sell in the US via independently owned dealerships. Tesla sells directly to customers (where I am, at least) and they've had problems in some states because they have laws that prohibit direct sales by manufacturers.
You can see more about the dispute here: https://en.wikipedia.org/wiki/Tesla_US_dealership_disputes