Polls from Harris Insights

Harris Insights has been polling since 2002 and has published 20 polls so far; the latest was on 10/12/2022.

Parties

PollsterShare (%)Date
REP53.0%2022-10-12
DEM47.0%2022-10-12

Coalitions

No polls available yet.

Accuracy at past elections

Average error 4.3 percentage points across 5 elections.

Systematic over- and understatement, per party

Mean signed difference between this pollster’s final poll and the result. A positive figure means the party was stated higher than it finished.

Party Mean difference Elections
Republican Party-4.9 percentage points5
Democratic Party-1.9 percentage points5

Per election

Election Final poll Days before Parties scored Difference
House election 2022 2022-10-12 27 2 1.7 percentage points
House election 2020 2020-11-01 2 2 3.3 percentage points
House election 2018 2018-11-05 1 2 4.1 percentage points
House election 2006 2006-10-22 16 2 8.3 percentage points
House election 2002 2002-10-23 13 2 4.4 percentage points

How this is measured: for each past election we take each pollster’s last poll in the 30 days before polling day and compare it, party by party, with the result. The figure is the mean absolute difference across the parties that appear in both. Only parties the pollster actually reported are counted. A late shift in opinion is not the same thing as a polling error.