Elon Musk.
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- Elon Musk will co-lead the Trump White House's Department of Government Efficiency.
- Musk is known for his intense work ethic and willingness to make drastic cuts to save costs.
- Musk has slept on Tesla's factory floor and told SpaceX workers to walk out of unnecessary meetings.
President-elect Donald Trump tapped Elon Musk to co-lead a new Department of Government Efficiency to reduce government spending along with businessman Vivek Ramaswamy.