Elon Musk is taking an influential Washington role but remains private about his family and life out of the spotlight.

On Jan. 20, DeepSeek, a Chinese artificial intelligence startup, released its latest version of the chatbot, R1, and it quickly became the No. 1 downloaded app in Apple’s App Store in the United ...

He also has extensive knowledge of, and practical expertise with, the National Electrical Code (NEC). Through his consulting ...