Tangentially- I appreciate what OpenElections does- however, I wish there was a similar organization that did not limit themselves to officially certified results. There are already other organizations who collect precinct results post-2016, and using only official results basically limits you to 2008 and afterwards, but historical election results are the real intrigue. Not to mention that I have noticed many blatant errors in election results that have supposedly been “certified” by a state/county government. The precinct results Pennsylvania publishes, for example, are riddled with issues.
We went with official precinct results for two main reasons: there are differences between election night and final results (some of them non-trivial) and to make the work more manageable. Agree that historical results are a real problem, and as a PA native I know only too well the errors that the state data contains, which is why we go county-by-county there.