Complex sentence: John Earl Haynes and Harvey Klehr, scholars of Soviet espionage, came to the defense of Horowitz and Radosh, writing an article in FrontPagMag refuting the crucial contention that Roosevelt's right-hand man, Harry Hopkins, was a soviet spy.
Split into simpler sentences: John Earl Haynes and Harvey Klehr, scholars of Soviet espionage, came to the defense of Horowitz and Radosh. They wrote an article in FrontPagMag refuting the crucial contention that Roosevelt's right-hand man, Harry Hopkins, was a soviet spy.