Trump fires Kristi Noem as DHS Secretary. See her political career.USA TODAYThursday, March 05, 2026 07:55:33 PM UTCTrump said March 5 he is replacing DHS Secretary Kristi Noem after scrutiny over a $220M ad campaign, naming Sen. Markwayne Mullin as successor.Read full story on USA TODAYShare this story on:-