Although Müller was able to resume his duties in the fall of 1929, he was physically weakened and unable to control the centrifugal forces at work. The coalition finally fell apart in a disagreement about budgetary issues. After the onset of the Great Depression, the unemployment insurance required an injection of taxpayer money by the Reich, but the parties could not agree on how to raise the funds. Müller was willing to accept a compromise offer by Heinrich Brüning (Zentrum), but he was overruled by the SPD parliamentary group which refused to make any further concessions. On the suggestion of his advisors, "Reichspräsident" Paul von Hindenburg refused to provide Müller's government with the emergency powers of Article 48, forcing Müller to resign on 27 March 1930.