How Many Republicans Registered To Vote 2025. Republicans also cut into democrats’ registered voter lead in nevada, another state that trump flipped from 2020. In terms of numbers, california and florida have the most registered republicans, with 5.48 million and 5.38 million, respectively — totalling around 30 percent of all registered.

Republicans will take control of the senate, flipping the chamber which democrats had controlled with vice president kamala harris’s tiebreaking vote. 2023 poll found that roughly a third of republicans even doubted the outcome of their own party’s primary contest.