Final answer:
The significant result of the Voting Rights Act of 1965 was a dramatic increase in the number of registered black voters in the South as well as increased voter turnout in subsequent elections, due to the prohibition of discriminatory practices such as literacy tests and poll taxes.
Step-by-step explanation:
The Voting Rights Act of 1965 had a profound impact on the political landscape in the United States, particularly in the South. One key result of this important legislation was the significant increase in the number of registered black voters in the Southern states. Prior to its passage, discriminatory practices like literacy tests and poll taxes were used to disenfranchise African American voters. However, the Voting Rights Act banned these practices and provided federal oversight, which led to vastly improved access to the ballot for black Americans.
For example, in Mississippi and Alabama, the percentage of registered African American voters saw a tremendous increase following the implementation of the Act. Likewise, voter turnout in these states increased notably between the 1964 and 1968 presidential elections. This legislation not only addressed voter registration but also affected wider political participation and representation. In summary, the result of the Voting Rights Act of 1965 was not a partisan switch or a decline in presidential approval, but rather an empowerment of black voters through increased registration and participation in elections.