Recent polling shows incumbent Republican Tom Cotton leading Democrat Hallie Shoffner by nine points among likely voters, narrowing from earlier surveys where the race sat near the margin of error. Heavy outside spending favoring Cotton and opposition research against Shoffner appear to have shifted support since August, while Arkansas’s strong Republican baseline and Cotton’s incumbency advantage anchor expectations for a double-digit victory margin. Early voting begins October 19, with turnout among older voters and independents likely to determine the final spread. A late surge in Democratic mobilization or higher third-party support could compress the margin below 10 points, whereas sustained Republican turnout in rural areas would likely push it toward 15–20 points. Trader pricing across margin buckets reflects this range, balancing the recent poll tightening against the state’s historical partisan lean.