New Deal When Franklin Roosevelt won the
presidency in 1932, Rosenberg was considered for leadership positions to manage the large programs of Roosevelt's signature
New Deal. Also in 1938, Roosevelt sent Rosenberg to Europe with a commission to study labor practices; it was the first of three missions to Europe she made for Roosevelt (the other two were during World War II). She served as regional director of the Social Security Board until 1943.
World War II In the summer of 1941, President Roosevelt enlisted Rosenberg's help addressing the calls of civil rights activist
A. Philip Randolph to end the systematic exclusion of Black Americans from the U.S. defense industry. Working with Randolph and New York City Mayor
Fiorello La Guardia, Rosenberg helped formulate what would become
Executive Order 8802 and its enforcement mechanism the
Fair Employment Practice Committee (FEPC), which prohibited ethnic or racial discrimination in United States' defense industry. Historian Roger Daniels described E.O. 8802 and the FEPC as "the first federal action[s] against race discrimination since
Reconstruction." By 1941, Rosenberg was serving as New York regional director of the Social Security Board and War Power Commission and in the Office of Defense Health and Welfare Services, earning her the nickname "Seven-Job Anna." From 1942 to 1945, Rosenberg served as New York State regional director of the
War Manpower Commission. Concurrently, she served as a consultant to the Retraining and Reemployment Administration. While with the War Manpower Commission, Rosenberg developed the "Buffalo Plan," which solved multiple problems bedeviling wartime defense manufacturing. Her plan was rolled out nationwide. When he honored Rosenberg as the first-ever recipient of the Medal of Freedom in October 1945, President
Harry S. Truman said that without the Buffalo Plan, the "necessary manpower for war production would not have been attained." Throughout the war years, Rosenberg shared a close friendship with President Roosevelt, and sometimes "smuggled food in to him", which they would eat in his office. A Chicago newspaper called her "perhaps the closest person to FDR, with the exception of Harry Hopkins." ==Truman administration==