Trump promised to take on what he called waste, fraud and abuse in government. He tapped Musk to lead the effort.

Elon Musk’s Department of Government Efficiency has been Donald Trump’s battering ram during the president’s first 100 days, slashing the federal government and trying to bend its remnants to Trump’s will.

The administration’s HR wing is approving new federal positions and firings, judging employees on their “faithful administration” of the president’s policies.