The vice president will also speak to supporters in Las Vegas late Thursday, after she became the first presidential candidate to advertise on the infamous Sphere. She will be joined by musician and actress Jennifer Lopez.
The Hill/Decision Desk HQ's polling index shows the former president leading Harris by less than 1 point in the state — 48.1 percent to 47.4 percent.
The vice president's remarks from Reno were expected to begin around 8:30 p.m. EDT.