Ross Gerber, a longtime Tesla investor and vocal Musk critic, didn’t hold back online, writing in his own post that, “no one wants the Elon first party,” accusing the company’s board of being “Elon vampires sucking the blood of Tesla equity.”

One analyst called on Tesla's board of directors to act and set "ground rules" for Musk's political involvements.

Tesla's stock dropped following CEO Elon Musk's announcement that he is forming the "America Party," reigniting political tensions weighing on investors.