Rosendale did not endorse Trump until after he had an insurmountable lead. Might be a loyalty thing.
“While career politician Matt Rosendale cowardly kowtows to his anti-MAGA globalist donors and refuses to support Trump in 2024, Tim Sheehy gave a middle finger to the establishment by publicly endorsing Trump for reelection in 2024,” a source close to Trump told Breitbart News. “Unlike Rosendale, Sheehy is a strong America First conservative and a true political outsider who is already proving that he has the courage to stand up to the swamp in Washington, DC.”