As cataclysmic as the Nuremberg Laws were, the Nazis had not gone as far with the legislation as their research into America had taken them. What did not gain traction on the day of the closed-door session or in the final version of the Nuremberg Laws was one aspect of the American system. While the Nazis praised “the American commitment to legislating racial purity,” they could not abide “the unforgiving hardness” under which “ ‘an American man or woman who has even a drop of Negro blood in their veins’ counted as blacks,” Whitman wrote. “The one-drop rule was too harsh for the Nazis.”