What are the four most important changes that have occurred in elections since the founding?

The most important modifications in elections have been those that stretched out to the right of women and African Americans, along with to the people of 18 years of age, and made the straight and general election of senators compulsory. The 15th Amendment manage to pay for African Americans suffrage by announcing that a citizen may not be deprived of the right to vote founded on race, color, or preceding condition of slavery. Though, this amendment was extremely hard to impose. This consequently led to other approaches to keep blacks from voting like the poll tax, literacy test, and grandfather clause. Women were lawfully kept from the ballots up until 1920 when the 19th Amendment was approved. The size of qualified voters doubled over time. On the other hand, there was no intense change in the transmission or fallouts of elections. They usually voted in the same way as men, and much less women chosen than men. The 26th Amendment was approved in 1971 and therefore in the 1972 elections all people among the ages of 18 and 21 could now elect. While 25 million people were additional to the eligible voter pool, their voters was comparatively low. In the beginning, the Voting Rights Act limited the provision to lower the voting age for senatorial elections, but the Supreme Court governed it unconstitutional, as a result yielding the 26th Amendment.