[meepmorp]

Elections are the responsibility of the individual states, so right there there’s at 51 entities with their own data sets. Of course, in many states, elections are handled at county level, so that’s more entities involved. And at least in my state, individual precincts may have different voting systems, within a single county.

Basically, it’s a decentralized mess.

[CivBase]

It can stay a decentralized mess. All the federal government has to do is require states to collect and report specific data in a specific format. They don't have to take over the election process. Apparently the states are already keeping records of that data since this project was able to reach 100% for the 2016 election, so they're already half way there.