CHRISTOPHER RUFO: The success of Trump’s second presidency could rise or fall on an unprecedented partnership

Editor's note: The following column was first published in City Journal. 

With President-elect Donald Trump set to take office later this month, it’s worth considering how his coalition has changed.

The source of the president-elect’s power—his voting base—is populist in nature. This was evident from the beginning. Trump rallied a new political cross-section and has, over the past decade, transformed the GOP into a multiracial, working-class party. He managed to draw tens of thousands...