Democratic communities and constituencies have grown in size in states like Arizona, Florida, Nevada, and Washington. In states that will lose a seat, the number of Republicans who will be competing with each other creates opportunities for House Democrats.
Democratic Congressional Campaign Committee Chairman Steve Israel • Fighting against claims that today’s census numbers are very bad for Democrats. But let’s face it – they’re going to be very challenging for Obama, and Democrats overall, to fight. The only real Democratic stronghold that gained any seats was Washington, and Obama banked his victory on many of the states that lost electoral college votes. The amount we’re talking about wouldn’t have been enough to hurt Obama’s in 2008, but if the 2012 race is closer, it could hurt. source