Mark this question

Which of the following factors contributed to many Americans voting strictly along party lines?

Several factors

Explanation:

Several factors influence party identification, and one of these factors is a person's race. In the years following the Civil War, the majority of African Americans and Northerners favored the Republican Party. Many African Americans changed their party identification during the 1930s Depression Era, when they began supporting the Democratic Party and its New Deal policies. The 1960s civil rights movement marked another shift in which African Americans increasingly supported Democratic candidates at the polls. In the last half of the twentieth century, African Americans and Mexican Americans have tended to be Democrats. Conversely, other Hispanics such as Cubans have shown strong allegiance to the Republican Party.