Swing voters are a Dim/media fabrication, designed to get the Republican to water down his/her conservative agenda so voters will just vote for the lib.
Why should Harris alienate her core supporters?
Guess again. They're about 15-20% of the electorate--the part that gets fought over during the general election campaign. If what you are saying is true, then there would be no need for an election campaign--whichever side had the greater throw-weight of voters would automatically win the election.
Why should Harris alienate her core supporters?
And there you have it--if she attempts to actually get 50% plus one vote, then her supporters are so psychologically fragile that they will not vote for her, and would prefer to re-elect the Democrat.
That kind of stupidity deserves to lose.