“Mass migration,” Rubio said, is “a crisis which is transforming and destabilizing societies all across the West.” He decried a “climate cult” and “energy policies” that “impoverished our people.” He condemned policies that “outsourced our sovereignty to international institutions” and invested in massive welfare states.” Red meat substance, suitable for delivery at any of the three Trump Republican National Conventions — more than have nominated any one person, the president might remind you, except for President Richard Nixon. But leavened, as the above quotations suggest, with frequent employment of the first-person pronouns and adjectives — “we” (69 times in the...