I think it would be a very bad idea to nationalize federal elections. Right now, each state chooses how they run their elections. Some states (like Maine) have chosen to use ranked choice voting while others use first past the post.
Nationalizing elections would basically cement first past the post as our permanent voting system forever since it's extremely unlikely you could convince everyone in the U.S. to change to a new one at once.
Nationalizing elections would basically cement first past the post as our permanent voting system forever since it's extremely unlikely you could convince everyone in the U.S. to change to a new one at once.