Trump said March 5 he is replacing DHS Secretary Kristi Noem after scrutiny over a $220M ad campaign, naming Sen. Markwayne Mullin as successor.

U.S. President Donald Trump announced Thursday that Markwayne Mullin will take over as secretary of the U.S. Department of Homeland Security, replacing...

He plans to nominate Republican Sen. Markwayne Mullin to be her replacement.