(I despise Ike. He helped the Muslims Brotherhood and Arab Socialists and the USSR with this. He also supported the lunatic idea of "Atoms for peace". As far as I know, the only competent thing he did after 1946, was Operation Wetback.)
I'm stunned by this. The election occurred in the middle of the Suez Crisis, which saw the US betray Britain and France just to screw Israel and support the pro-Soviet Nasser.
Everyone and his uncle seems to cite that table in the "Jewish Virtual Library" as definitive of how Jews voted for president going back to c. 1912. But you have to question the accuracy of those numbers. The source for that table is a book edited by the head of the National Jewish Democratic Council, who happens to be working the Jewish community for Obama's campaign now (in other words, he's as partisan a 'Rat as you could find with an axe to grind). Aside from that, because Jews represent such a small percentage of the general population and are spread out across the country, any polling of Jews nationally presents some serious logistic problems, and all pollsters face the inevitable conundrum of sacrificing accuracy in results for efficiency of technique or vice versa. Then, too, pollsters in earlier years were handicapped as well by poorer communication and transportation capabilities.
As for Eisenhower, FWIW, he later regretted his administration's policy in the Suez Crisis in his memoirs.