About This Blog

Welcome! My name is Nicolas Nevins, and I have created a mathematical formula intended to predict the results of US House Elections. I developed the formula over the past year, and it was quite accurate when retroactively applied to the 2012 and 2014 House elections (the only ones so far fully in the SuperPAC era). The formula includes many components that are believed to help predict the winner of US House races, such as fundraising, independent expenditures, partisanship of a district, and incumbency, among others. On this blog, I will publish and update my predictions for the 2016 elections.

Tuesday, October 18, 2016

10/18 Ratings Update

Here is my ratings update for this week. The changes are mainly caused by 3rd quarter candidate fundrasing reports, which were posted to the FEC on Sunday and Monday. These changes are also infleuenced by outside spending by SuperPACs. These changes have improved the overall outlook for Democrats, as I now project that Democrats will gain approximately 20 seats, 4 more than I projected last week. However, this is still short of the 30 that they need to retake the House. Nevertheless, there is still time left for Democrats, and outside spending through groups like the DCCC and House Majority PAC will be helpful for them in the upcoming weeks. If they can succeed in moving Toss-Up races into the Tilt Democrat column and Tilt/Lean Republican races into the Toss-Up column, then they may have a good chance of retaking the House.

Race Rating Changes:




RacePrevious RatingUpdated Rating

AK00 - (Young)
Leans Republican
Likely Republican

CA21 - (Valadao)
Tilt RepublicanToss-Up

CO03 - (Tipton)Tilt RepublicanToss-Up

CO06 - (Coffman)
Tilt RepublicanToss-Up

FL07 - (Mica)Tilt RepublicanToss-Up

FL18 - (OPEN)Tilt Republican
Leans Republican

FL26 - (Curbelo)Tilt Democrat
Leans Democrat

IA01 - (Blum)Toss-UpTilt Democrat

IA03 - (Young)Tilt RepublicanToss-Up

IL12 - (Bost)
Leans Republican
Likely Republican

MD06 - (Delaney)
Likely Democrat
Safe Democrat

ME02 - (Poliquin)
Toss-UpTilt Democrat

MI06 - (Upton)
Leans Republican
Likely Republican

MI07 - (Walberg)
Tilt Republican
Leans Republican

MN03 - (Paulsen)
Leans Republican
Tilt Republican

MN08 - (Nolan)
Leans Democrat
Likely Democrat

NJ03 - (MacArthur)
Likely Republican
Safe Republican

NV02 - (Amodei)
Safe Republican
Likely Republican

NV04 - (Hardy)Tilt Democrat
Leans Democrat

NY03 - (OPEN)
Likely Democrat
Safe Democrat

NY11 - (Donovan)
Likely Republican
Safe Republican

NY22 - (OPEN)Tilt Democrat
Leans Democrat

PA06 - (Costello)
Likely Republican
Safe Republican

SC05 - (Mulvaney)
Leans Republican
Likely Republican

VA10 - (Comstock)
Tilt RepublicanToss-Up

Updated Race Ratings:












Safe Republican (Republican has >95% chance of winning)Likely Republican (Republican has 85%-95% chance of winning)Leans Republican (Republican has 75%-85% chance of winning)Tilt Repubican (Republican has 65%-75% chance of winning)Toss-Up (Either side has <65% chance of winning)Tilt Democrat (Democrat has 65%-75% chance of winning)Leans Democrat (Democrat has 75%-85% chance of winning)Likely Democrat (Democrat has 85%-95% chance of winning)Safe Democrat (Democrat has >95% chance of winning)

FL02 - (OPEN)AK00 - (Young)FL18 - (OPEN)CA49 - (Issa)CA10 - (Denham)FL13 - (Jolly)AZ01 - (OPEN)CA24 - (OPEN)FL10 - (OPEN)

AZ02 - (McSally)MI07 - (Walberg)IN09 - (OPEN)CA21 - (Valadao)IA01 - (Blum)FL26 - (Curbelo)MN08 - (Nolan)MN02 - (OPEN)

IL12 - (Bost)NC13 - (OPEN)MN03 - (Paulsen)CA25 - (Knight)ME02 - (Poliquin)MI01 - (OPEN)VA04 - (OPEN)

MI06 - (Upton)NY02 - (King)NY01 - (Zeldin)CO03 - (Tipton)NH01 - (Guinta)NE02 - (Ashford)

MI08 - (Bishop)NY21 - (Stefanik)WI08 - (OPEN)CO06 - (Coffman)NV03 - (OPEN)NJ05 - (Garrett)

MI11 - (Trott)NY23 - (Reed)FL07 - (Mica)NY19 - (OPEN)NV04 - (Hardy)

NC08 - (Hudson)VA02 - (OPEN*)
FL27 - (Ros-Lehtinen)
NY22 - (OPEN)

NJ02 - (LoBiondo)IA03 - (Young)PA08 - (OPEN)

NV02 - (Amodei)IL10 - (Dold)

OH01 - (Chabot)NY24 - (Katko)

SC05 - (Mulvaney)PA16 - (OPEN)

TX23 - (Hurd)

VA05 - (OPEN)

VA10 - (Comstock)

All Other Seats Currently Held by RepublicansAll Other Seats Currently Held by Democrats

Projected Balance of Power: Currently 247 Republicans, 188 Democrats
D Pickups: 15     Toss-Ups: 10 (0D, 14R)     Projected Change: Democrats +20
R Pickups: 2                                                   Range: Democrats +13 - Democrats +27

New Balance of Power: 227 Republicans, 208 Democrats
Range: 220-234 Republicans, 201-215 Democrats

Updated Map:


The map that I use is a hexagonal congressional district map, which is a map where every district is the same size geographically, making it possible to see districts in urban areas that cannot be distinguished under a normal congressional district map. I am using this map under a Creative Commons Attribution-ShareAlike 4.0 International license You can read more about it here: http://www.dailykos.com/story/2015/6/3/1389806/-Daily-Kos-Elections-presents-the-best-map-ever-of-United-States-congressional-districts

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