More from Texas.  This is interesting research on 2021’s SB1, which (among other elements) required voters casting mail ballots to provide either their driver’s license or state ID number or their Social Security digits, both on mail ballot applications and then again under the flap of a mail ballot envelope itself – and required the information to match the voters on the registration rolls.

The study tracked voters whose applications or ballots were rejected because of this requirement in the 2022 primary election.  But the fascinating part for me is the longitudinal analysis using individual-level data, using difference-in-differences stats to try to assess the impact of the rejection on participating in other elections – the 2022 general election and the 2024 primaries.  Interesting stuff.