 However, Brandt's "Neue Ostpolitik" lost him a large part of the German refugee voters from East Germany, who had been significantly pro-SPD in the postwar years.Although Brandt is perhaps best known for his achievements in foreign policy, his government oversaw the implementation of a broad range of social reforms, and was known as a "Kanzler der inneren Reformen" ('Chancellor of domestic reform').According to the historian David Childs, "Brandt was anxious that his government should be a reforming administration and a number of reforms were embarked upon".