Sure, you want to come over and be the one to tell one of the states that they are "minor"? Joking aside... understand that we don't actually have a national

Sure, you want to come over and be the one to tell one of the states that they are "minor"? Joking aside... understand that we don't actually have a national election system, or even a state one. Each one of the United States 3,142 counties runs an mostly independent election managed by an elected county election commissioner. Tallies for higher elections are reported upward from there. In some states there may be some unification as far as selecting common voting hardware across the state but in most places, even that is at the discretion of the county. So, to your original question, The federal government simply does not have the power to choose a "minor" state to run a trial in.