Mark Harris

Republican · Candidate for Idaho State Senator, Legislative District 35 · Incumbent · November 3, 2026

Where they stand

Moderately right, from their state-legislature votes (Shor–McCarty). From their roll-call votes in the Idaho Senate, 2016–2022.

Source: data · how scores are linked to one scale.

Donor-based DIME score: moderately right.

More about Mark Harris

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Quick answers

What party is Mark Harris?
Mark Harris is running as a Republican.
Is Mark Harris the incumbent?
Yes. Mark Harris currently holds this office.
Who is Mark Harris running against?
Marty Rotz Kilhefner, for Idaho State Senator, Legislative District 35.
Is Mark Harris liberal or conservative?
On SpectrumVote's left–right scale, Mark Harris is moderately right, from their state-legislature votes (Shor–McCarty). This comes from published research, not our opinion.
Should I vote for Mark Harris?
SpectrumVote doesn't endorse anyone or tell you how to vote. Compare Mark Harris's record, funding and endorsements with the other candidates in this race and decide based on what matters to you.
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