R Realignment with Labor Organized labor has historically aligned with the Democratic Party while Republicans were associated with management. Donald Trump changed that formula in 2016 when he opposed trade agreements and argued on behalf of workers. Union leaders still backed the Democrat for president, Hillary Clinton, but union members voted for Trump at record levels. That situation may repeat itself as Mr. Trump has remained faithful to workers and skeptical of trade. The latest example being his Administration’s direct work with the AFL-CIO in crafting the first labor challenge under the USMCA. More Republicans may support Joe Biden in this year’s election, but labor union members that backed Trump in 2016 are unlikely to...