U.S. CTO Ethan Klein (@USCTO47) / X

U.S. CTO Ethan Klein

166 posts

U.S. CTO Ethan Klein

@USCTO47

The Official Account of U.S. Chief Technology Officer Dr. Ethan Klein 🥸 @WHOSTP47

Washington, DC

Joined January 2026

Pinned
U.S. CTO Ethan Klein
@USCTO47
Jan 23
Honored to have been sworn in last week as the 5th U.S. Chief Technology Officer. Excited to again be serving the American people @WHOSTP47 under the leadership of Director @mkratsios47. Thank you @POTUS for entrusting us to usher in a new GOLDEN AGE of American Innovation!
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U.S. CTO Ethan Klein reposted
Director Michael Kratsios
@mkratsios47
23h
Great conversation today @reindsummit in Detroit on AI, drones, quantum, and American leadership in emerging technologies. The reindustrialization of America is well under way. 🇺🇸
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U.S. CTO Ethan Klein reposted
Dept. of Agriculture
@USDA
Jun 16
📢 The FY2026 funding opportunity for the Research Facilities Act Program is OPEN. @SecRollins & @EDSecMcMahon hosted land-grant university leaders at USDA to announce this historic investment, administered by @USDA_NIFA to upgrade agricultural research facilities. Apply by
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U.S. CTO Ethan Klein reposted
Director Michael Kratsios
@mkratsios47
Jun 9
Thank you @FLOTUS for leading the Presidential AI Challenge and inspiring so many students across the country to dream, build, and innovate with AI. Was honored to announce the 2026 National Champions at the @WhiteHouse today. Their creativity and ambition are extraordinary.
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U.S. CTO Ethan Klein reposted
Darío Gil
@ScienceUnderSec
Jun 9
Today, I’m proud to share the release of @ENERGY’s finalized Fusion Science & Technology Roadmap. Developed with input from industry, National Labs, & academia, it sets a unified national strategy to move fusion from breakthrough to deployment. Read here: energy.gov/articles/energ…
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U.S. CTO Ethan Klein
@USCTO47
Jun 7
Manifesting!
The White House
@WhiteHouse
Jun 6
Patriots in control. 🫡
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U.S. CTO Ethan Klein reposted
Director Michael Kratsios
@mkratsios47
Jun 6
Was thrilled to host the U.S. National Physics Team at the @WhiteHouse this week with @USCTO47. These young geniuses represent the best of American ingenuity, and they are exactly why the future of science and technology leadership in this country is so bright.
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U.S. CTO Ethan Klein reposted
Director Michael Kratsios
@mkratsios47
Jun 5
Today, @POTUS signed a National Security Presidential Memorandum on AI in the national security enterprise. The men and women who defend our nation deserve the best, most secure, and most reliable AI in the world, and our citizens deserve to know it is handled responsibly with
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U.S. CTO Ethan Klein
@USCTO47
Jun 5
We are empowering AMERICAN PIONEERS, INNOVATORS, INVENTORS, and TECHNOLOGISTS. We are unleashing a GOLDEN AGE of American Innovation. We are REINDUSTRIALIZING our nation. Thank you to the great American companies who welcomed our team to their factory floors. Under this
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U.S. CTO Ethan Klein
@USCTO47
Jun 5
AMERICAN ENERGY DOMINANCE. AMERICAN NUCLEAR RENAISSANCE. A HISTORIC MILESTONE. 🇺🇸🇺🇸🇺🇸
U.S. Department of Energy
@ENERGY
Jun 4
Article
Department of Energy Celebrates First Advanced Reactor Criticality
Today, as part of the U.S. Department of Energy Reactor Pilot Program, Antares Nuclear’s advanced reactor design, the Mark-0, successfully completed a zero-power fueled criticality demonstration at...
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U.S. CTO Ethan Klein reposted
Darío Gil
@ScienceUnderSec
Jun 4
Proud to announce Japan as the first international partner of the Genesis Mission! 🇺🇸🇯🇵 Together, we are investing $1B to accelerate scientific discovery through next-generation AI and advanced computing. A milestone moment for two long-standing partners.
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U.S. CTO Ethan Klein reposted
NIH Innovates
@NIH_Innovates
Jun 1
If you’re building a U.S.-based life science company with a promising biomedical technology, America’s Seed Fund could help support your next stage of R&D. Now is the time to review the new Notices of Funding Opportunity, confirm eligibility, and begin preparing application
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U.S. CTO Ethan Klein
@USCTO47
Jun 1
GOLDEN AGE OF AMERICAN AVIATION Bring on the flying cars!
Secretary Sean Duffy
@SecDuffy
Jun 1
🚨WATCH: THE FUTURE OF AVIATION IS TAKING OFF🚨 It was an honor to become the first U.S. Transportation Secretary to fly in an eVTOL🇺🇸 Now we’re taking the future of flight to the next level with projects across 26 states that include testing of:  ✅ Urban air taxis ✅
00:00
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