How exit polls work—and why early election results can mislead

Politics · First reported 3 Nov, 10:00 · Updated 10:13

Image: Wikimedia Commons · NASA Earth Observatory image by Lauren Dauphin, using Landsat data from the U.S. Geological Survey. Story by Adam Voiland. · Public domain

The supplied articles explain how exit polls collect and report voter information, caution that early midterm results may differ from final outcomes, and discuss how election results could shape interpretations of party performance.

Exit polls combine surveys of voters at polling places with responses collected by phone, mail and online; the national sample is expected to include more than 75,000 voters.
The article says early votes counted could look more Republican than the final result, and that control of Congress could take days to settle.
One article says Democrats could win the House and, according to most forecasts, flip the Senate, while arguing that election results may not reflect the party’s broader popularity.

Summary written by Lux AI from 3 articles

Key facts

National exit-poll sample: More than 75,000 voters.
Polling locations: Interviewers will be stationed at more than 450 locations in 15 Senate battleground states.
Exit-poll reporting time: NBC News says it will not report exit-poll results before 5 p.m. ET on election night.
Potential timing of congressional results: Control of the House and Senate could take days to settle.