While Biden said he would “stand in solidarity with the men and women of UAW,” in the same tweet he called for “a win-win agreement.” But in the struggle between labor and capital over the wealth created by labor, there is no “win-win.” One side’s gain is the other side’s loss. The less the bosses pay the working class, the more they keep for themselves in the form of profits. Any gain for workers cuts into the bosses’ profit-taking.

Neither Biden’s appeal to the UAW nor Trump’s demagogy will help autoworkers win a decent contract. It’s by weaponizing their power to withhold their labor that autoworkers can make good the slogan, “When we fight, we win.”