Independent candidates challenge incumbents in 2026 Senate races

Independent candidates are emerging as significant contenders in several 2026 U.S. Senate races, challenging established Republican incumbents.

In South Dakota, independent Brian Bengs has secured nearly $10 million in funding for his campaign against Republican incumbent Mike Rounds. Supported by the Forward Party, Bengs is focusing his platform on campaign-finance reform and political corruption. Polling indicates Rounds holds a lead ranging from 8% to 19%, while Republican opponents have characterized Bengs as a liberal candidate.

In Nebraska, independent Dan Osborn is reportedly gaining ground against Republican incumbent Pete Ricketts. Once considered a secure Republican seat, the race has become increasingly competitive. Osborn has received endorsements from labor groups and the Nebraska Democratic Party, contributing to a shift in market assessments regarding the race's outcome.