All 10 States Losing Congressional Seats Lean Democratic

Each of the 10 states losing congressional seats as a result of the newly announced 2010 census reapportionment process is politically Democratic, based on a Gallup political identification measure from the first six months of this year. Five of the eight states gaining seats skew Republican.

Political Identification in States Losing Congressional Seats in 2010 Census Reapportionment, January-June 2010

Political Identification in States Gaining Congressional Seats in 2010 Census Reapportionment, January-June 2010

The results of the decennial census are used to reapportion the 435 House seats assigned to the 50 states. Each state receives a minimum of one congressional seat, with the remaining 385 seats apportioned according to the states’ relative population sizes. The results of this process are inherently political. States that gain congressional seats have more power in Congress, and — because electoral votes are directly related to the number of congressional seats held by each state — more election clout.

The full political implications of congressional seat losses in 10 Democratic states remain to be seen, and will in large part depend on the process of redistricting that will now get underway in each state. It is assumed that Democrats will lose some representation in the House as a net result of this process, but the precise way this will play out is not entirely clear. Similarly, although the majority of the states gaining seats are Republican in orientation, it is not clear whether the newly created House districts in each of those states will necessarily end up with a Republican representative, although it can be assumed that the net number of Republican seats in these states will increase.

The impact of reapportionment on the presidential election process is more straightforward. Traditionally blue states are losing electoral votes, while traditionally red states are gaining them. Various calculations have shown that Barack Obama would still have won the 2008 election even if the electoral votes were divided based on the new census apportionment. But the shift in population between states could give a Republican candidate just enough of an edge to bring victory in a close 2012 presidential race.

Read more from Frank Newport at Gallup

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