The artificial intelligence (AI) and data mining specialist just provided the clearest evidence yet that the AI revolution is gaining steam.

The onetime Silicon Valley upstart has emerged as a power player in Trump’s second term—and adopted his persona.

The Nasdaq slid 137.03 points (0.7 %) to 20,916.55, the S&P 500 fell 30.75 points (0.5%) to 6,299.19 and the Dow edged down ...