Toru Utsumi, 60, works as a management consultant, but on his days off, he has become a global internet star — despite some local disapproval.

© Louise Delmotte for The New York Times

With a narrow presidential election looming, President Luiz Inácio Lula da Silva and his allies claim Meta is trying to give his right-wing rival an advantage.

© Adriano Machado/Reuters

The growing use of walk-and-talk social videos can be traced to Zohran Mamdani’s successful campaign for mayor of New York City. But not all candidates are naturals on camera.