Chester A. Arthur where the former Senator hoped for a quick re-election to the Senate, and with it, a defeat for the Garfield administration. The Republican majority in the state legislature was divided on the question, to Conkling and Platt's surprise, and an intense campaign in the state house ensued. While in Albany on July 2, Arthur learned that Garfield had been shot. The assassin, Charles J. Guiteau, was a deranged office-seeker who believed that Garfield's successor would appoint him to a patronage job. He proclaimed to onlookers: "I am a Stalwart, and Arthur will be President!" Guiteau was found to be mentally
Charles J. Guiteau had been legally insane at the time of the shooting (because God had taken away his free will), he was not really medically insane, which was one of the major causes of the rift between him and his defense lawyers. Edward Charles Spitzka, a leading alienist, testified as an expert witness. Spitzka had stated that it was clear "Guiteau is not only now insane, but that he was never anything else." While on the stand, Spitzka testified that he had "no doubt" that Guiteau was both insane and "a moral monstrosity". Spitzka came to the conclusion that Guiteau had "the