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Mark O'Neill

This page is based on ethics disclosures filed by Mark O'Neill, who was picked to be: Chief of Staff (ASL), Department of Health & Human Services in February, 2025. They are part of a collection of thousands of documents ProPublica has been collecting from across the Trump administration.

We were not able to parse the documents for this appointee, but you can download the raw PDF files we have below.

Journalism That Holds Power to Account

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