Brandon Williams (@NNSAWilliams) / X

Brandon Williams

3,442 posts

Brandon Williams

@NNSAWilliams

Serving as the Under Secretary of Nuclear Security @ENERGY and NNSA Administrator under the leadership of President Trump. Sworn in on September 26, 2025.

Washington, DC

energy.gov/nnsa/person/br…

Joined April 2014

Brandon Williams
@NNSAWilliams
Jun 9
NNSA is shifting back to our roots, a production-centric organization, which means that completing warhead modernization programs on time and within budget is the principal metric of success. And we are succeeding. Every warhead modernization program is on time or ahead of
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Brandon Williams reposted
NNSA
@NNSANews
Jun 6
Today, on the 82nd anniversary of D-Day, we honor the memory of the Americans who sacrificed their lives to begin the liberation of Europe. The courage and determination of our brave soldiers who stormed the beaches continues to inspire us to the day.
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Brandon Williams
@NNSAWilliams
Jun 5
On this day in 1989, a solitary, unknown Chinese citizen stood defiantly against the repression of his own government. His breathtaking display of courage produced one of the most iconic images of the 20th century and a timeless reminder of the indomitability of the human spirit.
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Brandon Williams
@NNSAWilliams
Jun 3
It takes a weapons program to know a weapons program. At NNSA, we deter adversaries by being experts in atomic science and weapons production, and the investment in ATOLL strengthens our understanding of both.
NNSA
@NNSANews
Jun 3
🚨@NNSAWilliams joined @RepChuck at @ORNL to break ground on the Advanced Testbed and Operational Learning Laboratory, or ATOLL. The 21,000-square-foot facility will provide critical capabilities for NNSA nonproliferation programs while enabling advanced research, testing, and
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Brandon Williams reposted
Chuck Fleischmann
@RepChuck
Jun 2
Always great to run into my close friend, @NNSAWilliams! He is doing incredible work for @NNSANews and @ENERGY.
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Brandon Williams
@NNSAWilliams
Jun 1
Strength in partnership: @NNSANews and @US_STRATCOM share responsibility and commitment to America’s national security. Our resolve remains ironclad. Proud to welcome Admiral Correll to @y12nsc, the cradle of our nuclear enterprise, where we demonstrated the bedrock of U.S.
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Brandon Williams reposted
NNSA
@NNSANews
May 29
At the Tennessee Valley Corridor National Summit, @NNSAWilliams delivered a powerful address. He emphasized NNSA's critical, no-fail mission and underscored our commitment to bolstering America’s nuclear deterrent with an unwavering focus on production, deterrence, and urgency.
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Brandon Williams reposted
Rep. Mark Alford
@RepMarkAlford
May 27
First on @HASCRepublicans & now on @HouseAppropsGOP, we're delivering key wins for @KCNSC: ✅ Secured its formal designation as a Nuclear Weapons Production Facility in NDAA ✅ Included language supporting the KC NExt expansion We'll continue fighting for targeted investments
Rep. Mark Alford
@RepMarkAlford
May 26
We were in Kansas City at the Kansas City National Security Campus (KCNSC) for the KC NExT Building 201 Transfer Ceremony with Administrator Brandon Williams. Proud to join the National Nuclear Security Administration (NNSA), Honeywell FM&T, and Missouri leaders in advancing
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Brandon Williams
@NNSAWilliams
May 27
Last week, I completed my tour of the NNSA labs, plants, and sites (finest scientific and engineering organization in human history!). My final visit was at @KCNSC, embodying the DNA of NNSA’s production mission! KCNSC produces 80% of the non-nuclear components that go into our
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Brandon Williams
@NNSAWilliams
May 25
America’s sacred oath to Veterans on Memorial Day If you sacrifice your life in service to this nation, We, the People, do solemnly swear to: 1. Always remember and honor your sacred sacrifice 2. and, we will always uphold, cherish and defend those values for which you died:
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Brandon Williams
@NNSAWilliams
May 22
At our 250th birthday, freedom still isn’t free. That’s why we celebrate @Freedom250 on our NEST helicopters — the nuclear detectors that keep terrorists away from America’s most prominent events. 🇺🇸 There are so many great Americans serving @NellisAFB — they honor generations
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Brandon Williams reposted
NNSA
@NNSANews
May 21
Ahead of schedule. Mission delivered. 🇺🇸🇺🇸 NNSA delivered the First Production Unit of the W76/Mk4B to the U.S. Navy as we continue to strengthen and modernize America's nuclear deterrent. energy.gov/nnsa/articles/…
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Brandon Williams
@NNSAWilliams
May 20
Replying to @NNSAWilliams
NNSA Completes First Production Unit of W76/Mk4B Reentry Body
From energy.gov
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