The St. Louis County elections board reported that 3,287 Ferguson residents had registered to vote. That is a huge surge for a city of 21,000, particularly as controversy swelled about the racial make-up of the city government after the shooting. Ferguson is two-thirds African-American, but its mayor and all but one member of the six-person city council are white.

But apparently that first report was in error. There was no voter registration spike. The county elections board reversed course on Tuesday and said that, actually, only 128 people had registered to vote since the shooting.

Yamiche Alcindor of USA Today reported on the gigantic revision, attributed to an unexplained “discrepancy.”