TNPOLITICO Probability Tracker Methodology
At TNPOLITICO, we believe elections should be understood through data, not spin.
The TNPOLITICO Probability Tracker was created to give readers a clear, unbiased picture of where Tennessee’s political races stand at any given time.
Our goal is to replace speculation with structure — combining fundraising data, endorsements, turnout patterns, and momentum indicators into a single, easy-to-understand probability score.
These numbers don’t predict the future; they measure the current balance of power in real time.
Purpose
The TNPOLITICO Probability Tracker provides a weekly, data-based assessment of each candidate’s likelihood of winning a specific Tennessee election.
It is not a poll and does not attempt to predict the final outcome of an election. Instead, it measures relative campaign strength based on quantifiable and observable indicators available at the time of each update.
How the Model Works
Each candidate is assigned a score (0–100) in several key categories that reflect political viability and campaign momentum.
These scores are multiplied by assigned weights that represent the relative importance of each factor.
The resulting weighted totals are then normalized so that all candidates’ probabilities sum to 100% within their respective race.
This produces a clear, comparative measure of each candidate’s current standing.
Core Factors and Weights
| Factor | Weight | Description |
|---|---|---|
| Fundraising & Cash on Hand | 25% | Financial resources available for advertising, staffing, and voter contact. Strong fundraising typically correlates with higher viability. |
| Endorsements | 20% | Support from influential individuals and organizations, such as elected officials, party leaders, and major community figures. |
| Base Vote Strength | 20% | Historical performance, regional loyalty, and partisan lean within the candidate’s strongest areas. |
| Momentum & Visibility | 15% | Public appearances, media coverage, social engagement, and the overall sense of campaign activity. |
| Favorability & Media Sentiment | 10% | The tone of recent press coverage and public perception of the candidate. |
| National or Statewide Climate Influence | 10% | Broader political trends, such as presidential approval ratings or national issue salience, that could affect voter mood. |
Weights may be adjusted slightly in the final weeks of a campaign to reflect real-time factors such as early voting turnout or late endorsements.
Data Sources
TNPOLITICO relies exclusively on publicly available data, including:
- Federal Election Commission (FEC) and Tennessee Registry of Election Finance reports
- State and county election offices
- Public endorsements and press releases
- Local and statewide media coverage
- Verified polling data when available
- Social media and digital engagement indicators
Update Frequency
The tracker is updated weekly and more frequently in the final two weeks before major elections.
Each update is accompanied by an explanation of the changes and notable developments that influenced the probabilities.
Transparency
TNPOLITICO’s model is designed to remain non-partisan, data-driven, and transparent.
We do not use internal campaign polling or paid data sources.
All judgments about factor scores are based on verifiable, publicly reported information.
Interpretation
A candidate’s probability represents their relative likelihood of winning if the election were held today, based on the available data.
Because campaigns and events evolve quickly, these numbers are dynamic and not a guarantee of the final result.
Example Display
| Candidate | Probability | Change | Summary |
|---|---|---|---|
| Candidate A | 58% | ▲ +3 | Gained momentum from new endorsements and strong fundraising. |
| Candidate B | 42% | ▼ -3 | Declined after unfavorable coverage and reduced advertising. |
Contact
TNPOLITICO welcomes data tips, corrections, and additional sourcing that can strengthen the accuracy of our model.
Readers, campaign staff, and researchers may contact us at tips@tnpolitico.com with relevant information or documentation.
All submissions are reviewed confidentially.
