99chambers

Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

South Dakota · South Dakota Legislative District 12 · Updated Oct 16, 2026

Stephanie Arne

Democratic2 seats

2026 race · South Dakota Legislative District 12

45% chance of winning · race rated Toss-up

45%55%

56% chance of winning · race rated Toss-up

56%44%
● Stephanie Arne● Amber ArlintINCAlso: Kerry Loudenslager (R)
Full race forecast

Background

Record
No elected office on file.

Links: Candidate list (source)

Opponents in 2026