Incumbent U.S. Senator Pete Ricketts clinched the Nebraska Republican Senate primary on May 12, 2026, with overwhelming results reported overnight, propelling trader consensus to a 100% implied probability of his nomination over challenger Edward Dunn. As former two-term governor and current senator appointed to finish Ben Sasse's term, Ricketts leveraged strong incumbency advantages, party endorsements, and fundraising dominance in a low-turnout primary, aligning with pre-election polls implying over 98% odds of victory. Dunn, a perennial minor candidate, mounted no credible challenge. Realistic disruptions—such as a recount, disqualification, or certification reversal—are improbable absent irregularities, positioning Ricketts for the November general against independent Dan Osborn or consolidated Democratic opposition.