On June 8, 2017, Comey gave public testimony to the Senate Intelligence Committee about his firing. When asked why thought he had been fired, he said he had been confused by the shifting explanations for it but that "I take the president at his word that I was fired because of the Russia investigation." He said that he had made contemporaneous notes about several of his conversations with the president because "I was honestly concerned that he might lie about the nature of our meeting so I felt the need to document it." He said he had not done so with the two previous presidents he had served.