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Story summary
- Senator Markwayne Mullin is set to testify before the Senate Homeland Security Committee on March 18, 2026, after being nominated by U.S. President Donald Trump to head the Department of Homeland Security.
- He has faced scrutiny over his financial dealings, including investments in RTX, and must address ethics and conflict-of-interest concerns.
- The nomination comes as a government shutdown affects DHS operations, while Democrats challenge his alignment with immigration policies.
