 Michigan Governor G. Mennen Williams testified that, when he was director of the Mennen toiletries company, Dioguardi asked him for a $15,000 bribe in order to call off a 1951 strike.In a two-hour appearance before the Select Committee, Dioguardi invoked his Fifth Amendment right against self-incrimination 140 times, and refused to answer any of the committee's questions.The Select Committee's evidence was further undermined when one of its star witnesses against Dioguardi was found to be mentally incompetent.