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FORECAST10 DAYS OUT
← Pollster performance
Current archive

Mason-Dixon

3 sourced current-cycle records. No graded historical record is available for this canonical identity.

Archive source date 2026-10-24. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.

Rounds +19

Mike Rounds 56% · Brian Bengs 37%

Field dates
Oct 12–Oct 14, 2026
Sample
500 LV
Sponsor / client
Chiesman Center for Democracy at the University of South Dakota · South Dakota News Watch
Partisan sponsorship
No partisan sponsorship flag
House

HOU-SD-AL

Jackley +28

Marty Jackley 60% · Nikki Gronli 32%

Field dates
Oct 12–Oct 14, 2026
Sample
500 LV
Sponsor / client
Chiesman Center for Democracy at the University of South Dakota · South Dakota News Watch
Partisan sponsorship
No partisan sponsorship flag
Klobuchar +9

Amy Klobuchar 50% · Lisa Demuth 41%

Field dates
Oct 5–Oct 7, 2026
Sample
800 LV
Sponsor / client
KARE · StarTribune
Partisan sponsorship
No partisan sponsorship flag
Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.