> Plurality is a noun that, like majority, can mean more than half of the whole. However when it comes to voting, plurality refers to “the excess of votes received by the leading candidate, in an election in which there are three or more candidates, over those received by the next candidate.” This means that someone who wins the plurality of votes received more than any of the other candidates but not necessarily the majority. (emphasis stripped by copy-paste)
Hillary Clinton won the plurality in 2016, but since this was not a democratic election she was ultimately not elected president. Joe Biden won the plurality (and majority) in 2020.
Unless you're talking about the electoral college vote, but I don't see how you can link the word "mainstream" with an electoral college vote, as that is a vote of elites.
