I hear some suggestions that Trump might challenge Nevada because of his presumed potential in Clark and Reno, the most populous areas in the state -- after all, Trump's name is nearly synonymous with casinos, and casinos are indelibly connected with Vegas. Still, I never saw the evidence to support this thought.
Trump's hotel in Las Vegas is one of the very few flashy high-rise resorts that isn't actually a casino. Plus, the only people who would make any such cognitive associations are clearly not Nevada residents, and thus don't matter.