pluralities
Meaning
of Plurality
Source: Webster's dictionaryExamples
For the record, Prickly, the editorial refers to Trump's pluralities in various GOP primaries, not in the general election, where, in fact, Hillary Clinton won a majority of the total popular vote.
This opinion is shared by big pluralities to small majorities across geographic areas and socio-economic classes (45 percent to 54 percent and 47 percent to 54 percent, respectively).
Mathematics also has a similar stratum which is based among others on pure theory of pluralities, and a pure theory of numbers.
Only Washington, D.C. and Clinton's home state of Arkansas gave the majority of their votes to a single candidate in the entire country; the rest were won by pluralities of the vote.