THIS is a direct result of Republican incumbents being defeated:
Republican vulnerability in House races may be growing
http://deseretnews.com/dn/view/0,1249,635209216,00.html
Despite polls showing rising support for Democrats and scorn for Republicans, analysts have said Democratic hopes for big gains remain remote, because so few seats are in contention.
That appears to be changing.
Over the past week, a handful of once-safe Republican congressional seats have come into play, and other Republican incumbents are facing increasingly stiff re-election battles, according to analysts, pollsters and officials in both parties. The change amounts to a slight but significant shift in the playing field, and a potentially pivotal change in the dynamics of this midterm election.
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Republican incumbents being defeated puts the seat in play for the Dems. Doesn't sound like good news for us.
Republicans are losing these seats because THEY'RE FRICKING RINOS. Take off the blinders why don't you.