Linked to the most obscure faction of then-official Reformist Party, Vincho was accused of being the central figure in the "manoeuvre" that caused the electoral conflict of 1978, when President Balaguer refused to accept Antonio Guzmán Fernández's victory. Eventually, four elected senators from the opposing PRD where snatched away in a very questionable decision by the Electoral Junta. It has been alleged that Vincho personally altered and falsified acts and documents to support the fraud, but these accusations were never proved.