Get more FiveThirtyEight
- Terms of Use
- Privacy Policy
- Your California Privacy Rights
- Children's Online Privacy Policy
- Interest-Based Ads
© 2018 ABC News Internet Ventures. All rights reserved.
Chance the Democrat wins (52.2%)
Chance the Republican wins (47.8%)
We'll be updating our forecasts every time new data is available, every day through Nov. 6.
The Classic version of our model projects a race’s outcome by taking a weighted average of polls of a district (if available), polls of similar districts (CANTOR) and non-polling factors (fundamentals). It is then reverted toward a mean based on long-term trends in midterms and presidential approval ratings.
R+1.1
Adjusted polls
R+6.7
CANTOR
D+4.0
Fundamentals
D+4.1
Experts
R+1.1
Lite
D+0.4
Classic
D+1.6
Deluxe
<0.1
<0.1
Historical adjustment
Key
More weight
Less
We've collected seven polls for the New York 22nd. We’re adjusting poll results in three ways: Polls of registered voters or all adults are adjusted to a likely-voter basis; older polls are adjusted based on shifts in the generic congressional ballot since the poll was conducted; and polls are adjusted for house effects (the tendency for a firm’s polls to lean toward Democrats or Republicans). Polls with larger sample sizes and those conducted by higher-quality polling agencies are given more weight, as are more recent polls.
Adjustments | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
dates | pollster | sample | weight | Brindisi | Tenney | margin | likely voter | Time-line | House effects | Adjusted margin | |
Nov. 1-4 11/1-4 | Siena College/New York Times | 506 | LV | 1.82 | 45% | 46% | R+0.9 | — | <0.1 | 0.3 | R+1.2 |
Oct. 15-18 10/15-18 | Siena College | 501 | LV | 0.29 | 46% | 45% | D+1.0 | — | <0.1 | 0.3 | D+0.7 |
Oct. 12-13 10/12-13 | The Polling Company Inc. R | 400 | LV | 0.25 | 42% | 50% | R+8.0 | — | <0.1 | 5.3 | R+2.7 |
Aug. 20-26 8/20-26 | Siena College | 499 | LV | 0.00 | 46% | 44% | D+2.0 | — | 0.2 | 0.3 | D+1.9 |
Apr. 23-27 4/23-27 | Zogby Interactive/JZ Analytics | 358 | LV | 0.00 | 55% | 45% | D+10.0 | — | 1.1 | 0.3 | D+10.8 |
Mar. 8-12 3/8-12 | Greenberg Quinlan Rosner D | 500 | LV | 0.00 | 50% | 44% | D+6.0 | — | 0.7 | 1.7 | D+5.0 |
Nov. 9-10 11/9-10 | Public Policy Polling D | 599 | V | 0.00 | 47% | 41% | D+6.0 | 0.1 | 0.4 | 1.9 | D+3.6 |
Key
A = adults
RV = Registered voters
V = voters
LV = likely voters
= partisan poll
Our district similarity scores are based on demographic, geographic and political characteristics; if two districts have a score of 100, it means they are perfectly identical. These scores inform a system we use — CANTOR, or Congressional Algorithm using Neighboring Typologies to Optimize Regression — to infer what polling would say in unpolled or lightly polled districts, given what it says in similar districts.
Sim. score | Polling avg. | ||
---|---|---|---|
NY-23 | 85 | R+3.5 | |
PA-8 | 73 | D+13.5 | |
WI-6 | 71 | R+15.2 | |
WI-8 | 71 | — | |
PA-16 | 71 | R+3.1 | |
NY-21 | 71 | R+6.1 | |
NY-27 | 70 | R+4.6 | |
NY-19 | 68 | D+1.5 | |
MI-7 | 67 | R+6.6 | |
OH-5 | 67 | — |
The Classic and Deluxe versions of our model use several non-polling factors to forecast the vote share margin in each district.
Factor | Impact | Explanation |
---|---|---|
Incumbency | 3.2 | Claudia Tenney has been elected to 1 term. Congress has only a 20.1% approval rating, reducing the incumbency advantage. |
District partisanship | 4.6 | NY-22 is 12.8 percentage points more Republican-leaning than the country overall, based on how it has voted in recent presidential and state legislative elections. It voted for Trump in 2016 and Romney in 2012. |
Incumbent's margin in last election | 3.7 | Tenney won by 5.4 percentage points in 2016 in an open-seat race. |
Generic ballot | 7.0 | Democrats lead by an average of 8.6 percentage points in polls of the generic congressional ballot. |
Fundraising | 5.9 | As of Oct. 17, Anthony J. Brindisi had raised $2,898,000 in individual contributions (73% of all such contributions to the major-party candidates); Tenney had raised $1,068,000 (27%). |
Incumbent's voting record in Congress | 0.6 | Tenney has voted with Republicans 80% of the time in roll-call votes in recent sessions of Congress. |
Challenger experience | 2.0 | Brindisi has held elected office before. (So has Tenney, but this is accounted for in our incumbency calculation.) |
Scandals | 0.0 | Neither candidate is involved in a scandal. |
Total | D+4.0 |
The Deluxe version of our model calculates an implied margin for each race based on expert race ratings from The Cook Political Report, Inside Elections and Sabato's Crystal Ball; it then adjusts that margin toward its estimate of the national political environment.
Equivalent Margin | |||
---|---|---|---|
Expert | Rating | Raw | Adjusted |
Cook Political Report | EVEN | D+0.6 | |
Inside Elections | D+4.4 | D+5.3 | |
Sabato's Crystal Ball | D+6.7 | D+6.3 | |
Average | D+3.7 | D+4.1 |
Nate Silver explains the methodology behind our 2018 midterms forecast. Read more …
Comments