Electoral MeridianIndependent Election Research

Forecasts. Results. Evidence.

Arizona ยท Legislature

Legislative District 13

Here's what we think will happen: Kristie O'Brien, Racquel "Rockee" Armstrong and Jacob Weinberg. Votes come from the state's official results; the estimate is ours.

State Senate

Our estimate: Kristie O'Brien, >99% chance of winning.

CandidateVotesShare nowProjectedChance
Kristie O'Brien45,84655.0%54.5%>99%
Julie Willoughby37,52145.0%45.4%<1%

About 18,481 votes left. 45 of 45 precincts reporting.

82% counted

Stats

Since 2024D +16.2
Since 2022D +13.4
CountyVotesCountedO'BrienWilloughby
Maricopa83,42082%55.0%45.0%

State House

Our estimate: Racquel "Rockee" Armstrong, >99% chance of winning; Jacob Weinberg, 98% chance of winning.

CandidateVotesShare nowProjectedChance
Racquel "Rockee" Armstrong42,74027.3%27.1%>99%
Jacob Weinberg42,29927.0%26.8%98%
Kevin Hartke37,05823.7%23.9%1%
Janet Weninger34,37422.0%22.2%<1%

About 34,681 votes left. 45 of 45 precincts reporting. Voters choose 2, so totals count selections, not ballots.

82% counted

Stats

Since 2024D +13.5
CountyVotesCountedArmstrongWeinbergHartke
Maricopa156,54382%27.3%27.0%23.7%

How this estimate works

We take each county's votes so far and its estimated share counted, then ask how the remaining votes could change the order, running the count many times with different errors. In 2026, ballots counted after a place's first report ran about 21 points more Republican than that report, in the same places. An early Democratic lead here can shrink. The estimate expects part of that shift. This isn't a race call, and these chances are provisional. How the forecast works.