USAID, the humanitarian agency, has long been a target of criticism that its aid programs masked nation-meddling and overspent American tax dollars abroad. Now Elon Musk has boosted that criticism.

The billionaire said the agency was being shut down hours after President Donald Trump said it was being run by "a bunch of radical lunatics."

By Alexandra Alper and Raphael Satter WASHINGTON (Reuters) -One of the people working with billionaire Elon Musk in his efforts to overhaul the U.S. government is a Berkeley-educated computer scientist who has boosted white supremacists and misogynists online.

Angry and confused constituents have flooded the phone lines at the US Capitol this week, many of them asking questions about billionaire Elon Musk’s plans.