Dunn delves into a fascinating and overlooked aspect of the FDR presidency: Roosevelt’s brazen effort to assert control over his own party in the summer of 1938. Dunn has written an engaging story of bare-knuckled political treachery that pits a president at the peak of his popularity against entrenched congressional leaders who didn’t like where he was taking the country and their party. FDR tried to use the power of the White House, and his personality, to run his opponents out of the Democratic Party. He failed miserably.