If Republicans were to consistently draw just over 30 percent of the Hispanic vote, they would likely dominate American politics in both presidential and congressional races.
Before I defend that claim, let me point to a similar statement made 30 years ago about the Black vote.
In the Spring 1992 issue of the academic journal Political Science Quarterly (PSQ), three political scientists published an article titled “Blacks and the Republican Party: The 20 Percent Solution.”
The authors wrote, “Twenty percent [of Black voters] appears to be the threshold Republican strategists believe will establish GOP dominance in America politics — not only in presidential elections, which has been the pattern since 1968, but in congressional contests as well.”