From Nate Silver’s new Grantland piece, “The Six Big Takeaways From the Government Shutdown,” an explanation of why it’s unlikely that this failing Republican gambit will cost the GOP control of Congress in 2014:

“Democrats face extremely unfavorable conditions in trying to regain the House.

Even if the shutdown were to have a moderate political impact — and one that favored the Democrats in races for Congress — it might not be enough for them to regain control of the U.S. House. Instead, Democrats face two major headwinds as they seek to win back Congress.

First, there are extremely few swing districts — only one-half to one-third as many as when the last government shutdown occurred in 1996. Some of this is because of partisan gerrymandering, but more of it is because of increasingly sharp ideological divides along geographic lines: between urban and rural areas, between the North and the South, and between the coasts and the interior of the United States.

So even if Democrats make significant gains in the number of votes they receive for the House, they would flip relatively few seats because of the way those votes are distributed. Most of the additional votes would come in districts that Democrats were already assured of winning, or where they were too far behind to catch up.

Consider that, between 2010 and 2012, Democrats went from losing the average congressional district by seven percentage points to winning it by one percentage point — an eight-point swing. And yet they added only eight seats in the House, out of 435 congressional districts.

In 2014, likewise, it will require not just a pretty good year for Democrats, but a wave election for them to regain the House. But wave elections in favor of the party that controls the White House are essentially unprecedented in midterm years.”