The deputy secretary manages the Pentagon's day-to-day work, and Feinberg would be heavily involved in both workforce reduction and budget reshuffling, even as those efforts face

The US Senate confirmed billionaire Stephen Feinberg to be second in charge at the Pentagon, where the private equity investor promised to fix longstanding issues.

The Senate on Friday confirmed Stephen Feinberg, a billionaire investor who refused to acknowledge Russia invaded Ukraine and defended planned firings at the Pentagon, as the next deputy defense secretary.