Final answer:
In the Weimar Republic, the Social Democratic Party of Germany (SPD) was the largest party initially, but no party maintained an absolute majority due to the proportional representation in government. As economic conditions worsened, extremist parties like the communists and National Socialists became more influential. However, the Nazi Party never secured a clear majority in the Reichstag during the Weimar era.
Step-by-step explanation:
During the early years of the Weimar Republic, the Social Democratic Party of Germany (SPD) was the largest party and often led through coalitions. The Weimar Republic was characterized by a fragmented political spectrum with a proportional representation system, which made it difficult for any single party to hold an outright majority. Over time, the government stability weakened, and parties on both extremes of the political spectrum, such as the communists and the National Socialists (Nazis), began to gain more influence, especially as the economic situation in Germany deteriorated during the Depression.