Maybe there should  be two “persons of the year.” It would be hard to deny President-elect Trump’s bona fides in the wake of his astounding comeback. Yet there’s a close runner up in President Javier Milei, who won a mandate for radical reform such as has rarely, if ever, been seen before in the hemisphere. On his first anniversary, it looks like he’s off to a promising start. It’s hard to overstate Argentina’s newsworthiness.