Why did no congressional reapportionment occur in 1920?
Congress failed to reapportion following the 1920 Census. The failure was in part the result of a difference of opinion over the method of dividing political power. Throughout the 1920s, Congress debated which of two mathematical models for reapportionment—whose outcomes for distribution of House seats differed—would be used. In 1929, one mathematical method was selected for the reapportionment, but it was not applied until after the 1930 Census. Furthermore, the debate about apportionment methods was not over. In 1941, a different model was chosen called “the method of equal proportions.” It is still in use today. The failure to reapportion in 1920 was also a reflection of regional power dynamics. The results of the 1920 Census revealed a major and continuing shift in population from rural to urban areas, which meant that many representatives elected from rural districts resisted reapportionment. Also, the growing number of immigrants entering this country had some impact on populatio