David Crowley received 51% and Tom Tiffany 44% among Wisconsin likely voters in Marquette’s October 14–22 survey. Four percent had not decided.
| Response | Share |
|---|---|
| Tom Tiffany, the Republican | 44% |
| David Crowley, the Democrat | 51% |
| Haven’t decided | 4% |
Wisconsin likely voters: absolutely certain to vote or already voted; before leaner allocation · n = 668 · Fieldwork 2026-10-14–2026-10-22. Bars use a 0–100% scale. Less-than results retain the source threshold and have no exact-length bar.
The gap is not a prediction
The seven-point difference is within the pollster’s stated margin of error for the difference between candidates. The figures describe respondents certain to vote or who had already voted, before undecided voters were asked which candidate they leaned toward.
About the survey
SSRS conducted the survey for Marquette University Law School. The full sample included 818 registered voters; the likely-voter group included 668. Rounded shares total 99%.
Explore Wisconsin polling · Survey record and question details · Original release · Original response tables