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Course: AP??/College US Government and Politics?>?Unit 5
Lesson 1: Voting rights and models of voter behaviorVoting rights and models of voter behavior
Problem
"US Popular Vote for President as Percentage of Total Population." Source: Wikimedia Commons
Referring to the years 1920 to 1940 on the graph, which of the following was a catalyst for the upward trend in the presidential popular vote as a percent of the population in that period?