The plot against America / Philip Roth.

Enhanced descriptions from Syndetics:

When the renowned aviation hero and rabid isolationist Charles A. Lindbergh defeated Franklin Roosevelt by a landslide in the 1940 presidential election, fear invaded every Jewish household in America. Not only had Lindbergh, in a nationwide radio address, publicly blamed the Jews for selfishly pushing America toward a pointless war with Nazi Germany, but upon taking office as the thirty-third president of the United States, he negotiated a cordial "understanding" with Adolf Hitler, whose conquest of Europe and virulent anti-Semitic policies he appeared to accept without difficulty. What then followed in America is the historical setting for this startling new book by Pulitzer Prize-winner Philip Roth, who recounts what it was like for his Newark family -- and for a million such families all over the country -- during the menacing years of the Lindbergh presidency, when American citizens who happened to be Jews had every reason to expect the worst.