Answer: Historians who believe that the U.S. won the Cold War largely agree that American victory was guaranteed through finances. The United States bled Soviets coffers dry through proxy wars and the nuclear arms race.
the devices used to prevent African Americans from voting was voter qualifying tests (e.g., literacy tests), discriminatory enforcement of registration rules, poll taxes, there was also the grandfather clause that stated if you have a ancestor that voted before you it entitles you to voting without taking any test.