Candidate vs. Generic Ballot Delta

Overview

This pillar isolates a politician's personal electoral strength by subtracting the generic party ballot baseline from their specific polling numbers. It reveals whether a candidate acts as a drag on their party or provides a statistical boost to the ticket.

What It Does

It calculates the delta between 'Generic Republican/Democrat' polling questions and specific head-to-head candidate polls. This process separates the signal of the party's national environment from the unique popularity or unpopularity of the individual running. It effectively measures political Wins Above Replacement (WAR).

Why It Matters

National winds shift party popularity, but individual candidates often outperform or underperform that baseline significantly. Prediction markets often overvalue the party label and undervalue candidate quality. Identifying a candidate with a positive delta allows traders to bet on upsets in districts that look statistically safe for the opposing party.

How It Works

The system aggregates recent generic ballot polls to establish a party baseline. Simultaneously, it aggregates specific candidate polls for the same region and time window. It subtracts the generic support percentage from the specific candidate's support percentage to derive a 'Net Candidate Delta' score.

Methodology

We utilize a 14-day weighted rolling average for both generic and specific polls to smooth out noise. The formula is (Candidate_Poll_Avg - Generic_Ballot_Avg) = Candidate_Delta. Polls are weighted by sample size and pollster historical accuracy ratings. We strictly compare polls within the same geographic scope (national vs. national, state vs. state).

Edge & Advantage

This metric highlights 'zombie' candidates who are polling well only because their party is surging, versus 'titan' candidates who are winning despite a weak party brand. This allows for high-precision contrarian betting.

Key Indicators

• Net Candidate Delta

  high

  The percentage point difference between candidate support and generic party support

• Party Baseline Trend

  medium

  The directional momentum of the generic ballot over the last 30 days

• Divergence Velocity

  high

  How quickly a candidate's polling is decoupling from their party's baseline

Data Sources

• FiveThirtyEight

  Aggregated polling data and pollster ratings

• RealClearPolitics

  Historical generic ballot averages and spread data

Example Questions This Pillar Answers

• → Will the Democratic nominee win the presidency?
• → Which party will control the Senate after the election?
• → Will [Candidate X] outperform the generic ballot in the swing states?

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