FedGov should not reward one business model over another in car sales. I wonder if Cruz could appeal to at least some of the Warren voters by emphasizing his free market disdain for crony capitalism. Mainstream democrats and establishment republicans are both in the pockets of corrupt big business interests.
Unfortunately, in this case it is the state governments that are standing in the way. Although under the Constitution's “interstate commerce” clause, Congress has the authority to step in in this case.