Complex sentence: In 2009, Sally Jenkins and John Stauffer published "The State of Jones", which elaborates on Knight's pro-Union sympathies and presents evidence that his views on race played a significant role in his actions during and after the war.
Split into simpler sentences: In 2009, Sally Jenkins and John Stauffer published "The State of Jones," which elaborates on Knight's pro-Union sympathies. It presents evidence that his views on race played a significant role in his actions during and after the war.