Rocket's Red Glare is an alternate history novel set in New York City, 1941.
FDR is dead and the US is fascist. Charles Lindbergh is president and Joseph P. Kennedy is Treasury Secretary. Fred Trump is Mayor of New York. Oligarchs and plutocrats have the presidential ear. German American Bundists are rioting while police look away. As WW II officially begins, the British are defeated.
FBI agent Jack Kennedy begins to suspect the Holocaust about the same time he discovers Lindbergh's second family in Germany. Work on the bomb begins as a romance deepens between a mobster's daughter and a scientist at City College in New York
The mob and America's top scientists form The Resistance, working under a mysterious leader whose identity isn't revealed until the last chapter.