It makes sense to show a state id in order to vote for a a few reasons. It insures that you're a citizen of this country, that you are who you say you are, and it also stops people from being able to fill out absentee/mail-in ballots in other peoples names and then dropping them off at ballot box locations which is something that we know is happening similar to this case. https://ctmirror.org/2024/06/11/bridgeport-wanda-geter-pataky-arrested-absentee-ballot/. Granted, that was a local election and not national, but it can obviously happen either way and it's very easy to get away with. In this particular case, the video that caught them dropping the ballots in the ballot boxes were set to be deleted in 30 days after it was captured. They got lucky that a fire station across the street noticed the same woman dropping off tons of ballots at the ballot box across the street from them and they gave the video to one of the campaigns and that's what got them reviewing other ballot boxes around town in which they found more evidence of the same thing happening at those.