Undeclareds already like Trump.
Do they? I've seen some polls that say yes and others that say no, but it's always the same: 52% one way and 48% the other. That's too close for comfort.
Georgia and Arizona seem to be getting bluer by the day as Californians flee high housing prices and Nevada and Wisconsin should not even be considered swing states IMO. Can you remember the last time Nevada voted red in a presidential election? It's more or less California's little brother.
Nevada = East California