Tesla stock remains one of the most divisive on Wall Street. On one side, there are the bulls who love CEO Elon Musk's clean energy vision. On the other, a legion of short-sellers who believe financial reality will eventually catch up with the company. Galileo Russell, founder of HyperChange TV, and Mark Spiegel, managing member of Stanphyl Capital, joined Cheddar to make their bull and bear arguments for Tesla.