Incumbent Republican David Kustoff holds a strong edge in Tennessee’s 8th District, a seat rated Solid Republican by major forecasters with an R+20 partisan lean and consistent double-digit GOP margins in recent cycles. Limited public polling leaves the precise victory margin uncertain, which is reflected in similar pricing across Republican margin buckets from 0-5% to 30%+. Democrat Heidi Kuhn’s candidacy has not shifted the race into contention, consistent with the district’s voting patterns and Kustoff’s fundraising and institutional support. National midterm conditions or unusually high Democratic turnout could compress the margin, while sustained Republican performance would likely push it toward the historical average near 20 points. The November 3 general election timeline keeps focus on turnout and any late campaign developments.