More argumentative paintings, by Goya, by Picasso, by David himself in his earlier phase, seem one-eyed and didactic next to it. And what was David? A political practitioner, a social being.

Desperate times call for desperate measures. With just 19 days to go until Election Day, Vice President Kamala Harris has adopted a frantic, discombobulated strategy of throwing everything she can ...

In a series of studies, we set out to answer those questions. Our findings reveal that numbers have persuasive power—but they need to be employed with care to compel action. The lessons we ...