Trump Fires DHS Secretary Kristi Noem: What Happened and Who Will Replace Her?
President Donald Trump has fired Homeland Security Secretary Kristi Noem, marking a major cabinet shake-up in his second term. The decision followed intense political pressure, controversial immigration policies, and heated congressional hearings.
Trump announced the move on March 5, 2026, through social media. At the same time, he revealed a replacement and outlined Noem’s next role in his administration.
Why Trump Fired Kristi Noem
Several controversies surrounded Noem’s leadership of the Department of Homeland Security (DHS). Critics questioned her handling of immigration enforcement and disaster response. Lawmakers from both parties also challenged her during recent congressional hearings.
Additionally, DHS faced scrutiny after fatal incidents involving immigration officers and U.S. citizens. These events triggered public backlash and congressional investigations.
Another major controversy involved a $200 million advertising campaign targeting undocumented immigrants. Critics claimed the campaign served political interests rather than public safety.
Furthermore, questions emerged about DHS spending and internal management. These issues intensified political pressure on the administration to act.
Trump Announces Replacement
After removing Noem, Trump nominated Oklahoma Senator Markwayne Mullin to lead the Department of Homeland Security. The appointment will require Senate confirmation before becoming permanent.
According to the announcement, Mullin could serve as acting secretary under federal rules while awaiting confirmation. The transition is expected to take effect by March 31, 2026.
Trump described Mullin as a strong supporter of his border and immigration policies.
Kristi Noem’s New Role
Although Trump removed Noem from the DHS leadership role, he did not completely dismiss her from the administration.
Instead, Trump announced that Noem will become “Special Envoy for the Shield of the Americas.” This new position will focus on security cooperation across the Western Hemisphere.
The administration plans to unveil the “Shield of the Americas” initiative during an upcoming event in Florida.
Impact on Trump’s Immigration Agenda
The Department of Homeland Security plays a key role in Trump’s immigration crackdown. Under Noem, DHS launched aggressive enforcement operations and expanded deportation efforts.
However, her policies sparked lawsuits, protests, and growing political divisions. Some critics argued the agency relied too heavily on aggressive tactics.
With Mullin potentially taking over, analysts expect Trump’s immigration strategy to continue. However, the leadership change may also signal adjustments to DHS priorities.
A Major Cabinet Shake-Up
Noem’s departure represents the first cabinet-level removal during Trump’s second presidency. The sudden decision highlights ongoing tensions within the administration over immigration enforcement and federal agency leadership.
Meanwhile, political observers say the change could reshape the administration’s national security and border policies in the coming months.