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Chance the Democrat wins (15.3%)
Chance the Republican wins (84.7%)
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+8.6
Adjusted polls
R+6.6
CANTOR
R+3.1
Fundamentals
R+6.3
Experts
R+8.5
Lite
R+6.4
Classic
R+6.4
Deluxe
<0.1
<0.1
Historical adjustment
Key
More weight
Less
We've collected three polls for the North Carolina 2nd. 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 | Coleman | Holding | margin | likely voter | Time-line | House effects | Adjusted margin | |
Oct. 24-28 10/24-28 | SurveyUSA | 565 | LV | 1.84 | 40% | 49% | R+9.0 | — | <0.1 | 0.1 | R+9.1 |
Sep. 5-8 9/5-8 | SurveyUSA | 538 | LV | 0.02 | 44% | 43% | D+1.0 | — | 0.1 | 0.1 | D+0.8 |
Aug. 23-27 8/23-27 | Greenberg Quinlan Rosner D | 401 | LV | 0.05 | 45% | 44% | D+1.0 | — | 0.1 | 1.7 | R+0.6 |
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. | ||
---|---|---|---|
VA-1 | 77 | — | |
NC-9 | 77 | R+0.3 | |
SC-1 | 74 | R+9.0 | |
VA-2 | 72 | R+3.5 | |
SC-2 | 72 | — | |
NC-13 | 70 | R+2.9 | |
VA-7 | 70 | R+0.9 | |
NC-7 | 67 | D+0.5 | |
NC-8 | 67 | — | |
FL-3 | 66 | — |
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 | 3.1 | George Holding has been elected to 3 terms. Congress has only a 20.1% approval rating, reducing the incumbency advantage. |
District partisanship | 4.5 | NC-2 is 12.7 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 | 5.0 | Holding won by 13.4 percentage points in 2016. |
Generic ballot | 6.8 | Democrats lead by an average of 8.6 percentage points in polls of the generic congressional ballot. |
Fundraising | 1.3 | As of Oct. 17, Holding had raised $1,100,000 in individual contributions (55% of all such contributions to the major-party candidates); Linda Coleman had raised $890,000 (45%). |
Incumbent's voting record in Congress | 2.0 | Holding has voted with Republicans 86% of the time in roll-call votes in recent sessions of Congress. Candidates who vote with their party very frequently tend to underperform at the ballot booth, other factors held equal. |
Challenger experience | 2.0 | Coleman has held elected office before. (So has Holding, but this is accounted for in our incumbency calculation.) |
Scandals | 0.0 | Neither candidate is involved in a scandal. |
Total | R+3.1 |
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 | R+6.7 | R+6.1 | |
Inside Elections | R+6.7 | R+5.8 | |
Sabato's Crystal Ball | R+6.7 | R+7.1 | |
Average | R+6.7 | R+6.3 |
Nate Silver explains the methodology behind our 2018 midterms forecast. Read more …
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