You are quite mistaken to think of the MAGA, or America First people, as the "base" of the GOP.
They are a medium-sized faction that the rest of the party will vote for a Democrat, or stay home, to keep out of power.
T$ is the face of MAGA and he’s polling about 60% in the GOP primary. this suggests that MAGA is the base of the GOP to me
That's quickly changing at the people see through the establish rino's agenda.