Trump Administration Cabinet Shakeup
TL;DR
The firing of Homeland Security Secretary Kristi Noem — the first cabinet casualty of Trump's second term — has been followed within days by the announced departure of FDA vaccine chief Vinay Prasad, signaling an accelerating pattern of personnel upheaval across the administration. From a $220 million ad scandal to deadly immigration enforcement operations to regulatory chaos at the FDA, the turbulence extends far beyond any single official, raising questions about governance and accountability as Year Two begins.
On the afternoon of March 5, 2026, President Donald Trump announced what many in Washington had seen coming for weeks: Homeland Security Secretary Kristi Noem was out. In a statement, Trump named Oklahoma Sen. Markwayne Mullin as her replacement, effective March 31 . Noem would be reassigned to a newly created position — Special Envoy for the Shield of the Americas — a title that many observers interpreted as a face-saving soft landing for a secretary whose tenure had become defined by controversy, bipartisan outrage, and a fatal break with the one person whose approval matters most in this White House .
The next day, another shoe dropped. FDA Commissioner Marty Makary informed staff that Dr. Vinay Prasad — the agency's embattled vaccine chief and director of the Center for Biologics Evaluation and Research (CBER) — would depart at the end of April, returning to his academic position at the University of California, San Francisco . It was the second time in less than a year that Prasad had been pushed out, and it capped a week in which the administration's carefully maintained image of second-term stability crumbled in real time.
Taken together, the Noem firing and Prasad departure mark a decisive inflection point. What had been a remarkably stable cabinet through all of 2025 is now shedding personnel at multiple levels — and the forces driving these exits suggest the turbulence is far from over.
A $220 Million Problem
The proximate cause of Noem's termination was a $220 million Department of Homeland Security advertising campaign that was supposed to showcase the administration's immigration enforcement record. Instead, it became the vehicle for her undoing .
The campaign featured Noem prominently — in commercials where she appeared on horseback with Mount Rushmore as a backdrop, imagery drawn directly from her South Dakota political brand. According to a ProPublica investigation, at least one beneficiary of the nine-figure contract was kept secret: the Strategy Group, a Republican consulting firm with deep personal and business ties to Noem and her inner circle at DHS . The firm's CEO is married to Noem's chief spokesperson at DHS, Tricia McLaughlin, and longtime Noem adviser Corey Lewandowski — who had been installed at DHS as a special government employee — had extensive working ties with the company .
DHS had bypassed the standard competitive bidding process for the contract, citing "an unusual and compelling urgency" related to the U.S.-Mexico border situation . But the final straw came not from the contract itself, but from what Noem said about it. In testimony before the Senate Judiciary Committee on March 3, Noem asserted that President Trump had personally blessed the campaign . Trump had not. A White House official told NBC News within hours: "POTUS did not sign off on a $220 MILLION dollar ad campaign. Absolutely not" . In the Trump universe, publicly attributing unauthorized decisions to the president is an unforgivable sin. Within 48 hours, Noem was gone.
"Homegirl had to go," Rep. Jasmine Crockett (D-TX) told CNN, defending the tough questioning that preceded Noem's removal .
Operation Metro Surge: The Human Cost
But the ad scandal was only the final chapter of a tenure that had been fraying for months. The deeper crisis centered on Operation Metro Surge — the largest immigration enforcement operation ever carried out on American soil — and the deaths that accompanied it .
On December 4, 2025, DHS announced the operation targeting the Minneapolis–Saint Paul metropolitan area. By January 6, 2026, the agency had expanded it dramatically, deploying approximately 2,000 to 3,000 federal officers into the Twin Cities . What followed shocked the nation.
On January 7, ICE officers shot and killed Renee Good, a 37-year-old U.S. citizen and Minneapolis resident, during an enforcement action on Portland Avenue. Good was behind the wheel of her Honda Pilot when two officers approached. She briefly reversed, then turned the vehicle's wheels away from the officers. An officer fired three times, striking Good in the chest and head . On January 24, Alex Pretti — a 37-year-old intensive care nurse employed by the VA — was shot multiple times and killed by two Customs and Border Protection officers while filming enforcement activity on his phone. Pretti had positioned himself between an agent and a woman the agent had pushed to the ground .
Both victims were American citizens. Yet when pressed in congressional testimony, Noem declined to apologize and referred to Good and Pretti as "domestic terrorists" — a characterization that conflicted with available video footage and drew bipartisan condemnation . Nationwide, DHS immigration enforcement officers have shot 14 people since September 2025 .
The FDA's Vaccine Chaos
If Noem's departure was the loudest crack in the administration's facade, Prasad's exit exposed a quieter but equally consequential dysfunction — this time at the heart of the nation's public health apparatus.
Prasad, a UC San Francisco oncologist and prominent critic of what he viewed as lax FDA standards, was appointed to lead CBER under FDA Commissioner Makary. His tenure was marked by a pattern of regulatory whiplash that alarmed pharmaceutical companies, patient advocates, and members of Congress from both parties .
The most explosive controversy came in February 2026, when Prasad personally overruled career FDA scientists to reject Moderna's application for a new mRNA-based influenza vaccine — a highly unusual "refuse-to-file" decision. According to STAT News, the head of the FDA's vaccine office, David Kaslow, had written a detailed memo recommending the agency proceed with the review. Prasad overrode it . Moderna went public with the rejection and vowed to challenge it. Within a week, under White House pressure, the FDA reversed course and agreed to accept the application pending an additional study — an extraordinary public reversal that one industry publication called "regulatory whiplash" .
That was not an isolated incident. More than six drugmakers developing therapies for rare diseases received rejection letters or demands for additional clinical trials under Prasad's watch, adding years and millions in development costs to treatments for desperate patients. In a particularly heated dispute, the FDA demanded that UniQure conduct a sham-surgery controlled trial for an experimental Huntington's disease gene therapy — contradicting prior agency guidance. At an unusual press conference defending the decision, an FDA official declared: "We have a failed product here" .
Prasad had been forced out once before. In July 2025, he was briefly removed after conflicts with biotech executives, patient advocacy groups, and conservative allies of President Trump. He was reinstated less than two weeks later with the backing of Health Secretary Robert F. Kennedy Jr. . But this time, his exit appears permanent. The FDA and other health agencies have taken a more vaccine-skeptical posture under Kennedy, a longtime vaccine critic, and Prasad's departure raises fresh questions about who will lead the agency's review of vaccines and biologics at a critical juncture .
A Year of Stability — Then the Dam Breaks
These departures come in stark contrast to the narrative that defined Year One. Trump ended 2025 without a single cabinet departure — a remarkable achievement given that his first term saw 35% turnover among senior "A Team" staff in the same timeframe .
The Brookings Institution, which has tracked presidential staffing since Reagan, noted that Trump's second-term "A Team" turnover stood at 29% as of January 20, 2026 — lower than his first term's 35%, but still nearly triple the 10% average for other modern presidents . The distinction was that the turnover had been concentrated among sub-cabinet appointees and senior advisers — notably on the National Security Council staff — rather than the cabinet itself.
That stability was deliberate. The second Trump administration prioritized loyalty vetting to a degree unprecedented in modern presidential politics . But analysts at Brookings and elsewhere had warned that every modern president since Reagan experienced a significant uptick in senior staff departures during Year Two . The Noem firing and Prasad departure, arriving in the same week, suggest that pattern is now reasserting itself with force.
The media coverage data tells the story. Coverage of "Trump cabinet" had been minimal through most of early 2026, barely registering in the GDELT media monitoring index. Then, in the first week of March, it exploded — coverage intensity on March 5, the day of Noem's firing, spiked to roughly five times its February average .
The Federal Workforce: A Parallel Story of Disruption
The personnel dramas at the top play out against a backdrop of historic disruption to the federal workforce itself. While Trump's cabinet stayed intact through 2025, the broader government experienced extraordinary upheaval driven by the Department of Government Efficiency (DOGE) initiative.
Bureau of Labor Statistics data shows that federal government employment (excluding the Postal Service) fell from approximately 3,010,000 in January 2025 to 2,683,000 by February 2026 — a decline of over 327,000 positions, or nearly 11% .
The Defense Department alone lost more than 60,000 employees; Treasury lost more than 30,000; Agriculture more than 20,000 . Over 92% of departures were technically voluntary — most through a deferred resignation program — but the term "voluntary" masked the pressure campaigns and ultimatums that drove them .
The consequences have been painful. Courts ordered the rehiring of many dismissed workers after finding the firings were conducted improperly. By mid-2025, the administration was scrambling to bring back employees it had just forced out, as critical government services faced breakdowns . And despite the massive workforce reduction, federal spending actually increased in 2025, rising from $6.95 trillion to over $7 trillion — undermining the efficiency rationale for the cuts .
Enter Markwayne Mullin
Into this volatile landscape steps Mullin, a 47-year-old Republican senator whose biography reads like a deliberate contrast to Noem's polished political persona .
Mullin is the only Native American currently serving in the U.S. Senate, a citizen of the Cherokee Nation. Before politics, he ran Mullin Plumbing — a company he took over after leaving college on a wrestling scholarship when his father fell ill. He is a National Wrestling Hall of Fame member, a former professional mixed martial arts fighter, and once hosted a home improvement radio show .
His political relationship with Trump is the key to his nomination. Mullin has cultivated a role as the president's "Senate whisperer" — a trusted intermediary who translates legislative dynamics for Trump and carries his priorities back to Capitol Hill . The initial Senate reception has been notably warm, with Sen. John Fetterman (D-PA) calling Mullin "a good dude" .
The Unemployment Backdrop
The administration's personnel dramas unfold against an economic picture that offers both reassurance and warning. The national unemployment rate has held relatively steady, registering 4.4% in February 2026, up from 4.0% in January 2025 but within historical norms .
However, the steady headline number masks the localized effects of federal workforce reductions. Communities heavily dependent on government employment — particularly around Washington, D.C., military installations, and federal agency hubs — have experienced sharper dislocations that the national average obscures.
What Comes Next
The convergence of the Noem firing and Prasad departure in a single week has opened a door that many in Washington believe will not close quickly. Brookings' tracking data, historical precedent, and the administration's own internal dynamics all point toward a period of accelerated personnel change .
Several cabinet members have faced quiet criticism. Energy Secretary Chris Wright's name surfaced alongside Noem's in CNN's November 2025 reporting on potential shakeup targets . The broader health apparatus under Kennedy remains in flux, with Prasad's exit leaving a critical vacancy at CBER — the office responsible for reviewing all vaccines and biological products in the United States — at a moment when the agency's credibility with the pharmaceutical industry and the public is already under strain .
For the broader public, the question is whether March's departures represent isolated corrections — the removal of officials who overstepped — or the opening act of a second-term purge cycle. History suggests the latter. And in an administration where loyalty is the paramount currency but the definition of loyalty can shift overnight, the lessons of this week are clear: no position is safe, and the line between trusted insider and former official can be crossed with a single Senate testimony or a single overruled memo.
This article was last updated on March 7, 2026.
Sources (25)
- [1]The Latest: Trump Fires Homeland Security Secretary Noem Amid Criticism Over Immigration Enforcementusnews.com
Trump fired Kristi Noem as Homeland Security Secretary and named Oklahoma Sen. Markwayne Mullin as her replacement, effective March 31.
- [2]CABINET SHAKEUP: Noem Out at DHS, Senator Markwayne Mullin to Step Into the Rolehannity.com
Noem was reassigned to a newly created Special Envoy for the Shield of the Americas position.
- [3]Trump administration's FDA vaccine chief Vinay Prasad is leaving for the second timenpr.org
FDA Commissioner Marty Makary announced Prasad would depart at end of April, returning to UCSF. This marks his second departure in less than a year.
- [4]Trump Fires Kristi Noem in First Major Cabinet Shakeup of Second Termibtimes.sg
The decision came after Noem testified Trump had authorized $220 million in DHS advertising campaigns featuring the former South Dakota governor.
- [5]ProPublica investigation into DHS advertising contractpropublica.org
The Strategy Group, a Republican consulting firm with ties to Noem's inner circle, received $226,137 from a no-bid DHS contract bypassing competitive bidding.
- [6]FDA vaccine chief to leave the agency for a second timenbcnews.com
A White House official told NBC: 'POTUS did not sign off on a $220 MILLION dollar ad campaign. Absolutely not.' Noem's claim triggered her removal.
- [7]FDA's controversial vaccine chief will exit agency next monthcnn.com
Rep. Jasmine Crockett defended the tough questioning that preceded Noem's removal, saying 'Homegirl had to go.'
- [8]Second cabinet of Donald Trump - Wikipediawikipedia.org
Operation Metro Surge deployed 2,000-3,000 federal officers into the Minneapolis-Saint Paul area, the largest immigration enforcement operation on American soil.
- [9]Photos of Kristi Noem, Trump's First Cabinet Secretary to Leave During His Second Termusnews.com
ICE officers shot and killed Renee Good, a 37-year-old U.S. citizen, during an enforcement action. DHS has shot 14 people since September 2025.
- [10]Trump Turnover 2.0: Tracking Who's Out of Trump's Second Termusnews.com
Alex Pretti, a 37-year-old VA nurse, was shot and killed by CBP officers while filming enforcement activity on his phone.
- [11]Trump administration's embattled FDA vaccine chief is leaving for the second time - ABC Newsabcnews.com
Prasad initially refused FDA review of Moderna's mRNA flu vaccine. More than six drugmakers developing rare disease therapies received rejection letters.
- [12]Prasad overruled FDA staff to reject Moderna flu vaccine applicationstatnews.com
Prasad personally overruled career FDA scientists to issue a refuse-to-file letter for Moderna's mRNA influenza vaccine application.
- [13]'Regulatory whiplash' as FDA decides to review Moderna flu shotcen.acs.org
Within a week, under White House pressure, the FDA reversed course and agreed to accept Moderna's flu vaccine application for review.
- [14]FDA's Vinay Prasad, controversial CBER chief, to departstatnews.com
The FDA under Kennedy has taken a more vaccine-skeptical approach. Prasad's departure leaves a critical vacancy at the Center for Biologics Evaluation and Research.
- [15]Trump ends 2025 with no Cabinet turnoverballotpedia.org
Trump ended 2025 without a single cabinet departure, a remarkable streak of stability for his second term.
- [16]Tracking turnover in the second Trump administrationbrookings.edu
Second-term A Team turnover stood at 29% as of January 2026, vs. 35% in the first term and a 10% average for other modern presidents.
- [17]GDELT Media Coverage Volume: Trump Cabinetgdeltproject.org
Media coverage of 'Trump cabinet' spiked to 0.52 on March 5 from an average of ~0.12 in February, a roughly 5x increase coinciding with Noem's firing.
- [18]Bureau of Labor Statistics: Current Employment Statisticsbls.gov
Federal government employment (ex. Postal Service) fell from 3,010,000 in Jan 2025 to 2,683,000 in Feb 2026 — a decline of 327,000 positions.
- [19]Less personnel drama but still sky-high turnover one year into Trump's new termnpr.org
Over 92% of federal departures were technically voluntary, but pressure campaigns and ultimatums drove them. Federal spending still rose above $7 trillion.
- [20]Top FDA vaccine regulator Vinay Prasad to depart agencywashingtonpost.com
Courts ordered the rehiring of many dismissed federal workers after finding the firings were conducted improperly.
- [21]Donald Trump's Cabinet, 2025-2026ballotpedia.org
Mullin is the only Native American in the Senate, a Cherokee Nation citizen, former MMA fighter, and Trump's 'Senate whisperer.'
- [22]President Trump Ousts Kristi Noem as Homeland Security Secretary in Major Cabinet Shakeupmegynkelly.com
Mullin serves on Armed Services, Appropriations, and HELP committees. Sen. John Fetterman called him 'a good dude.'
- [23]Trump Fires Kristi Noem In First Cabinet Shakeup Of Second Termmatzav.com
Sen. John Fetterman (D-PA) called Noem's replacement Mullin 'a good dude' in initial Senate reaction.
- [24]Unemployment Rate (UNRATE) - FREDfred.stlouisfed.org
U.S. unemployment rate stood at 4.4% in February 2026, up from 4.0% in January 2025.
- [25]FDA vaccine head will step down in April after string of controversial decisionscnbc.com
Energy Secretary Chris Wright was named alongside Noem in CNN's November 2025 reporting on potential cabinet shakeup targets.
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