Original sentence: A number of historians that Luther's rhetoric may have contributed to, or at the very least foreshadowed, the actions of the Nazis when Adolf Hitler came to power in Germany in 1933, although the extent to which it played a direct role in the events leading to the Holocaust is debated
Edited sentence: There is little doubt among historians that Luther's rhetoric may have contributed to, or at the very least foreshadowed, the actions of the Nazis when Adolf Hitler came to power in Germany in 1933, although the extent to which it played a direct role in the events leading to the Holocaust is debated