From a column in Slate (Mark Joseph Stern)
Adjusting each candidate’s vote share by demographic, as
FiveThirtyEight allows, illustrates the problem for Republicans: Bumping up minority support for Trump does shockingly little to improve his odds. My former colleague Matt Yglesias
has pointed out, for example, that Trump could improve 10 points with Hispanic voters and 20 points with Black Americans—but still lose to Harris if he does just 2 points worse with white people. Even if Trump does exponentially better with Hispanic voters than he did in 2020, he’ll lose if Harris shaves off a few points among whites. The Electoral College bias is exacerbated by the fact that white people still make up a sizable majority of the country. So Republican gains among nonwhites don’t count for much, especially when they’re offset by even minor Democratic gains among whites.