One common explanation for last week’s “blue-bath”—the election night triumph by Democrats just one year after President Donald Trump retook the White House—is that the GOP’s “multiracial coalition” collapsed. There’s just one problem: That coalition never existed, at least not to the extent imagined by doomsaying Democrats and wish-casting Republicans. Grasping this basic reality is necessary to understand the macro trends in American politics. Even after decades of mass immigration from the Global South, the red team has remained overwhelmingly white. Trump’s voters in 2024 were 84 percent white, according to the comprehensive AP VoteCast survey of 120,000 voters. That’s...