......Larry Sabato, a political scientist at the University of Virginia who has studied African American precincts, said he had occasionally seen 100 percent of the vote go for the Democratic candidate. Chicago and Atlanta each had precincts that registered no votes for Republican Sen. John McCain in 2008.
"I'd be surprised if there weren't a handful of precincts that didn't cast a vote for Romney," he said. But the number of zero precincts in Philadelphia deserves examination, Sabato added.
"Not a single vote for Romney or even an error? That's worth looking into," he said.
In a city with 1,687 of the ward subsets known as divisions, each with hundreds of voters, 59 is about 3.5 percent of the total.
In some of those divisions, it's not only Romney supporters who are missing. Republicans in general are nearly extinct....Update: I added an example just to illustrate how absurd this is. Notice the Green, Libertarian, and Republican Parties all got skunked. They all look like this.
If this isn't enough, Bosman has more examples in the comment section.