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2024 President · national

RMG Research · fieldwork ended 2024-10-16 (20 days before the election) · 2,950 respondents · Online Opt-In Panel

The poll said

Democrat 50% · Republican 49%

D+1.0

The certified result

Democrat 48.33% · Republican 49.80%

R+1.5

The arithmetic

  1. Poll margin = 50 − 49 = 1.00
  2. Actual margin = 48.326 − 49.798 = -1.472
  3. Signed miss = 1.00 − (-1.472) = 2.472
  4. Absolute miss = |2.472| = 2.472

The poll overstated the Democrat by 2.5 points and had the wrong leader.

Where these numbers come from

Poll and result: 538 president_polls_historical.csv (archived 2025-03-06). Poll ID 88775, race ID 8914 (538 database).

population: lv

actual: national share computed from summed statewide votes