President Trump's endorsement for Iowa governor Randy Feenstra failed to secure victory, with conservative outsider Zach Lahn narrowly winning the Republican primary. This rare high-profile loss for Trump comes despite his recent string of dominant primary victories over Republican opponents. Feenstra's defeat marks one of the highest-profile candidates endorsed by Trump to lose a Republican primary in years.

In Iowa's Democratic Senate primary, Josh Turek secured victory with $10 million in support from a Schumer-aligned veterans organization, defeating progressive Zach Wahls. Meanwhile in New Jersey, Dr. Adam Hamawy won a crowded Democratic primary for a House seat, backed by Sanders and Ocasio-Cortez. These results demonstrate establishment candidates' continued ability to overcome insurgent challenges with financial advantages.

Deb Haaland, former Biden Interior Secretary, easily won New Mexico's Democratic gubernatorial primary without presidential backing. The Iowa Democratic nominee Rob Sand now sees a competitive governor's race as Democrats aim to flip the seat from Republican control. These outcomes suggest while Trump's influence remains strong, his endorsements face increasing challenges in local races where anti-establishment sentiment persists.