Internal email lists and other documents and interviews provide the widest view so far of who is working in DOGE — and officials inside other agencies with Musk connections.

A federal judge, citing a risk of “irreparable harm,” early Saturday temporarily restricted Elon Musk’s government efficiency team from accessing a critical Treasury Department payment system.

Much attention has been paid to the young Silicon Valley engineers working for Musk’s Department of Government Efficiency, but the group has also hired high-powered legal talent.