Katie Miller, a top aide to Elon Musk at the Department of Government Efficiency, spends much of her time on White House grounds, helping Musk plan and communicate his efforts to slash the federal government. 

But she also spends time working for P2 Public Affairs, a major Republican consulting firm in Washington, which pays her full salary. She has continued to work for Fortune 100 clients, including Apple, offering public relations advice, according to people familiar with the matter. Since starting at the White House, Miller has also helped P2’s leaders pitch the firm to new clients for lucrative contracts, offering her guidance about Washington in this moment. Her husband is White House Deputy Chief of Staff Stephen Miller, among the most powerful advisers in the administration, controlling all domestic policy. 

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