Electing a president

Once again, our national election for the president of the United States is in shambles. This has happened a number of times in the history of elections in the U.S. What I do not understand is the complex election rules that currently exist. Since the office of president, members of the house of representatives and senate are all federal government personnel, they should be elected by a set of rules created by the federal government. As it is now each state sets their own rules, which can change with each new state administration.

To make matters worse, each county in that state has their own...