At one point his office was forced to actually investigate and look for fraud, and what they found... were wealthy people -- typically Republican voters -- who owned properties in multiple locations and were voting at each of those locations.

Absentee/mail-in ballots make that kind of fraud much easier, but despite it being the only fraud he ever found, Kobach never pushed for any kind of purge of multiple-property-owning voters from the rolls, or ID checks for mailed-in ballots. Wonder why...