Ranking U.S. Senate races by “closeness”

Americans have an obsession with lists.  Especially lists that rank things.  Whether it’s sports, or politics, or cell-phone plans, or sushi restaurants, it seems that the best way to provoke a debate is to rank a bunch of something.

Which is why political pundits love to rank U.S. Senate races.  But the problem is, most of them use the wrong criteria.

Most Senate race rankings are ranked with the seats “most likely to change parties” at the top.  But that’s neither interesting or useful.  

The Virginia seat is the most likely to flip this year; Mark Warner’s going to crush Jim Gilmore.  We get it.  But at this point in the cycle, who cares?

Unless you’re a D.C. corporate lobbyist trying to figure out where to invest your client’s money, the “most likely to flip” ranking doesn’t matter.

Instead, if you’re an activist donor – a member of the netroots – the question before you is this:  Where will my money make the most difference?  Which race is at a tipping point?  Which race needs “all hands on deck”?

Over at Pollster.com, they’ve done an amazing job of compiling all the available polls – and assembling a combined trend analysis.

Here’s a table that ranks all the U.S. Senate races by closeness:

Rank Sept 22 State Democrat % Republican % margin
1 1 OR Merkley 42.3 Smith 42.2 +0.10
2 2 NC Hagan 43.1 Dole 42.3 +0.80
3 3 AK Begich 48.3 Stevens 45.5 +2.80
4 4 MN Franken 41.3 Coleman 45.1 -3.80
5 5 CO M. Udall 44.7 Schaeffer 39.2 +5.50
5 8 NH Shaheen 49.4 Sununu 43.9 +5.50
7 6 MS-B Musgrove 42.4 Wicker 49.6 -7.20
8 7 NJ Lautenberg 47.6 Zimmer 39.1 +8.50
9 11 KY Lunsford 38.8 McConnell 50.1 -11.30
10 9 TX Noriega 38.1 Cornyn 51.8 -13.70
11 10 NM T. Udall 55.1 Pearce 41.4 +13.70
12 15 SC Conley 37.8 Graham 52.8 -15.00
13 12 LA Landrieu 56.0 Kennedy 40.8 +15.20
14 14 GA Martin 36.6 Chambliss 52.3 -15.70
15 13 ME Allen 39.6 Collins 55.7 -16.10
16 16 IA Harkin 56.8 C. Reed 38.4 +18.40
17 17 OK Rice 36.3 Inhofe 55.2 -18.90
18 24 KS Slattery 36.2 Roberts 56.8 -20.60
19 18 ID LaRocco 31.8 Risch 52.5 -20.70
20 19 IL Durbin 57.6 Sauerberg 35.3 +22.30
21 20 NE Kleeb 35.4 Johanns 58.5 -23.10
22 21 MI Levin 56.2 Hoogendyk 32.8 +23.40
23 23 MS-A Fleming 33.5 Cochran 58.5 -25.00
24 22 VA Warner 57.9 Gilmore 32.3 +25.60
25 25 MA Kerry 57.0 Beatty 29.3 +27.70
26 26 SD Johnson 61.3 Dykstra 32.4 +28.90
27 27 TN Tuke 29.2 Alexander 59.3 -30.10
28 28 AL Figures 30.7 Sessions 60.9 -30.20
29 29 MT Baucus 64.0 Kelleher 31.0 +33.00
30 30 RI J. Reed 72.0 Tingle 20.0 +52.00