Voter fraud is a Rorschach test of American politics. If you are a liberal, you fervently believe that it is virtually non-existent, and any effort to prevent it must be a pretext. If you are a conservative, you believe that voter fraud is a reality and are probably suspicious that it sometimes swings elections.

At Breitbart News, former California State Assemblyman Tim Donnelly points out that California’s record keeping in relation to the driver’s licenses it issues to illegal aliens may provide a simple opportunity to find out, once and for all, how serious a problem voter fraud is:

[T]he California DMV can internally differentiate within their database who holds an “illegal alien” AB60 license — which contradicts what is being pushed by left-wing activist websites that have reassured illegal aliens that once the driver’s license is entered in the database, the entry is indistinguishable. In a state like California, where every regular driver’s license holder is automatically registered to vote, and where almost a million illegal aliens have received these “federally-restricted, drive only” licenses — it’s critically important that additional safeguards be in place to prevent non-citizens from being “accidentally” registered to vote. When asked about how the DMV prevents this from happening, Gonzalez said “[t]he programming blocks AB 60 applicants from having the option to register to vote.” How is the California voter assured that voter fraud is not happening, given that the only safeguards in place are a computer program and the honor system?

Donnelly suggests that Attorney General Jeff Sessions subpoena California’s AB 60 list and its voter list from the last election, and compare the two. Good idea! We join in that suggestion.

If it turns out that there is no, or almost no, overlap, it doesn’t mean that voter fraud doesn’t happen anywhere else. (In Minnesota, for example, quite a few specific instances have been documented where the identity of the person casting an illegal ballot is known.) But if voter fraud isn’t happening in California, with its huge population of illegal immigrants, it probably isn’t a very big problem in most other states, either.

So let’s compare California’s lists and settle the question.