Actually the only part of anthraciteland where Obama did well was Lackawanna county (ie; Scranton). Where his running mate be from. In the rest of the area the swings to him were anemic.
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I suppose Flint might be explained by the big black population. Swings in Saginaw and so on weren't so high.
The swing in Saginaw County was higher than the national average, and not that much less than in Genesee.
Unless you mean Saginaw City vs. Flint City; I'm just looking at the Atlas results which doesn't have City/Town results for MI yet (unfortunately....). Of course, the city of Saginaw itself has quite a large black population, too.
