It does occur. For example, among establishment Republicans who fret that taking a tough position on border security endangers a GOP seeking to broaden its base. “In 1984 Reagan received 37 percent of the Hispanic vote, but after the 1986 amnesty George H.W. Bush received a significantly lower 30 percent,” Edward J. Erler, a professor emeritus of political science at California State University-San Bernardino points out. “Granted, Bush was no Reagan, but such ingratitude seemed to puzzle Republicans.”
Many things puzzle Republicans.