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.”

Investment firm Azoria Partners said on Saturday it will postpone the listing of its Azoria Tesla Convexity exchange traded fund after Tesla CEO Elon Musk said he was forming a new U.S. political party.