Electoral MeridianIndependent Election Research

Forecasts. Results. Evidence.

States ยท Kansas

Jefferson County, Kansas

2026 election results. Roger Marshall (R) got 57% of the U.S. Senate vote in Jefferson County. The margin is 18.9 points more Democratic than the 2024 presidential vote here.

2026 results in Jefferson County

U.S. Senate

Roger Marshall
56.9%4,570
Adam Hamilton
38.9%3,128
David Graham
4.1%333
100% counted

Statewide: Adam Hamilton wins. Called.

Governor

Ty Masterson
61.7%4,933
Cindy Holscher
38.3%3,064
100% counted

Statewide: not called; Cindy Holscher leads.

U.S. House: Kansas 1st District

Tracey Mann
62.5%4,992
Lauren Reinhold
34.2%2,737
Steven Jacob
3.3%263
100% counted

Whole district: Tracey Mann wins. Called.

The leader in Jefferson County is only who has the most votes counted here. Races are won statewide or district-wide, and only the race pages report calls. Last vote update here Nov 13, 10:20 AM.

Compared with 2024

RaceMargin2024 presidentShift
KS SenateR +18.7R +37.7D +18.9
KS GovernorR +23.4R +37.7D +14.3
KS-01R +29.2R +37.7D +8.5

Margins compare the Democrat and the Republican only. The 2024 column is the presidential margin in the same places as each race's votes here. Shift is this year's margin minus it, shown once at least 90% of the expected vote is counted. A dash means there's no 2024 figure for those exact places.

How Jefferson County has voted for president

YearDemocratShareRepublicanShareMarginVotes
2024Kamala Harris30.5%Donald Trump67.4%R +36.99,927
2020Joe Biden32.7%Donald Trump64.8%R +32.19,782
2016Hillary Clinton30.2%Donald Trump62.5%R +32.38,337
2012Barack Obama37.2%Mitt Romney60.2%R +23.18,013
2008Barack Obama39.6%John McCain58.3%R +18.78,950
2004John Kerry37.0%George W. Bush61.5%R +24.58,793
2000Al Gore38.1%George W. Bush56.2%R +18.17,877

Shares are of all presidential votes, and the margin is the Democrat's share minus the Republican's. Since 2000, the presidential margin here has moved R +18.8.

Other counties in Kansas

Kansas results

Sources & scope

Votes for 2026 come from the count this site reads, by county. They're unofficial until Kansas certifies them. Past presidential votes are from MEDSL and VEST, via Polling Forecast. Kansas's own results, deadlines and offices are on the state page.