“Donald Trump’s strategy in this campaign has been fairly clear from the beginning: Drive up Republican support among white voters in order to compensate for the GOP’s shrinking share among the growing nonwhite portion of the electorate.

And Trump has succeeded in overperforming among a certain slice of white voters, those without a college degree. But overall, the strategy isn’t working. Trump has a smaller lead among white voters than Mitt Romney did in 2012, and Trump’s margin seems to be falling from where it was when the general election began.”