Sanders has not exploited the Supreme Court’s Citizens United decision, but is still reaping its benefits. There’s not much Sanders could do to stop outside groups, but he hasn’t actively denounced their help, either. He would be much more precise if he said: “I do not have a super PAC allied with me.”
As currently framed, however, Sanders’s statement does not quite qualify for a Geppetto Checkmark. We would give half a Pinocchio if we could, but we do not use half-Pinocchios. So Sanders earns One Pinocchio.