PollingSource Logo

PollingSource

The number one source for political election data

Polling Trends
Senate House Governors Primaries Data Generic Ballot Pollsters Analysis Login Subscribe

← All pollster records

DHM Research

8 scored general-election polls (2014–2022) , each measured against the certified result. How to read these numbers: methodology.

Record by cycle

CyclePollsAvg. ErrorLeanWinner Called
2022 1 4.4 pts R+4.4 0%
2020 1 4.1 pts R+4.1 100%
2018 1 1.4 pts R+1.4 100%
2016 4 3.9 pts R+0.1 100%
2014 1 2.1 pts D+2.1 100%

Every scored poll

DateRacePoll MarginActualErrorCalled It
2022-09-23 OR Governor R+1.0 D+3.4 4.4 ✗
2020-09-05 OR President D+12.0 D+16.1 4.1 ✓
2018-10-08 OR Governor D+5.0 D+6.4 1.4 ✓
2016-10-27 OR President D+7.0 D+11.0 4.0 ✓
2016-10-27 OR Governor D+9.0 D+7.2 1.8 ✓
2016-10-10 OR President D+7.0 D+11.0 4.0 ✓
2016-10-10 OR Governor D+13.0 D+7.2 5.8 ✓
2014-10-09 OR Senate D+21.0 D+18.9 2.1 ✓

Margins shown as party lead (D+/R+); for non-D-vs-R matchups the margin is first-listed candidate minus second. Historical scored-poll data for cycles through 2023 from FiveThirtyEight's pollster-ratings dataset (CC-BY-4.0); 2024 scored by PollingSource. This record never changes what enters the PollingSource average.

Support Independent Election Data PollingSource is free and non-partisan. Your donation helps us continue providing accurate election data.

© 2026 Innovative Research and Data Solutions, LLC. All rights reserved.

Data updated regularly from public polling sources.

As an Amazon Associate, PollingSource earns from qualifying purchases.

Methodology • Pollster Records • Privacy Policy • Terms of Service