Final answer:
Chancellor Heinrich Bruning's fall from power was due to his unpopular austerity policies during a severe economic crisis and the rise of extremist parties.
Step-by-step explanation:
The fall of Chancellor Heinrich Brüning was a significant event in German history that led to the rise of Adolf Hitler and the Nazi Party. In the early 1930s, Germany was facing severe economic crisis, and Brüning's conservative policies, which mirrored the austerity approaches of President Hoover, failed to address the suffering of the German people. This paved the way for political extremism. The 1932 elections resulted in no clear majority but indicated a dramatic shift in public support towards extreme parties, namely the Communist Party and the National Socialist German Workers' Party (Nazis).
Influenced by Nazi political gains and underestimating Hitler's ambitions, President Paul von Hindenburg dismissed Bruning in 1932 and eventually appointed Hitler as chancellor in January 1933, hoping he could be controlled by traditional conservative forces.