The single most important change to the system of voting in the United States of America would be to eliminate the Electoral College and go with the actual count of the voters in the country. The college was fine during the early days of the republic but has outlived its usefulness. As was so evident in the 2016 election (which I chose not to vote for president in because I didn't deem either candidate worthy of the office), the person elected was not the person that the majority of the voting public thought should be president. The system is such that by intense campaigning in a few states with a significant number of electors the election can be "gamed" to produce an outcome that is not always in tune with the actual will of the electorate.
The single most important change to the system of voting in the United States of America would be to eliminate the Electoral College and go with the actual count of the voters in the country. The college was fine during the early days of the republic but has outlived its usefulness. As was so evident in the 2016 election (which I chose not to vote for president in because I didn't deem either candidate worthy of the office), the person elected was not the person that the majority of the voting public thought should be president. The system is such that by intense campaigning in a few states with a significant number of electors the election can be "gamed" to produce an outcome that is not always in tune with the actual will of the electorate.