I wonder how they got the info on the race of the people who had their entries flagged, given that sort of thing is not listed on voter registration forms anywhere so far as I know.
Is the basic problem here that people tend to forget to cancel their old registration when they move? Perhaps, it's that Hispanics and blacks tend to be more transient because of poverty.
Also, what seems like a better explanation, is that black people tend to have English last names, Hispanics tend to have Spanish last names, whereas whites have last names from all over Europe. So for example, there are more registrations tossed out by mistaking Garry Smith for Garry Smith than mistaking Garry Kowalski for Garry Kowalski.
Or, people could just look for names like Jamal and Jose and knock them off. I hope that would never happen and I actually think even Republicans are above that.