Trump said "Nobody knows what magnets are"

What we know

On November 10, 2025, Trump twice made comments along the lines of "nobody knows what a magnet is" and "nobody knows what magnets are": once in an interview on Fox News with Laura Ingraham, and again during a brief exchange with reporters in the Oval Office. Fact-checkers reviewed footage from both events and confirmed the quotes are authentic and were not fabricated or edited out of context.

In the fuller context, Trump was arguing that magnets are essential to nearly every piece of modern technology, saying that without them there would be no cars, radios, televisions, or internet, before pivoting to describe his negotiations with China over rare earth materials used to manufacture high-performance magnets. The underlying policy point has real substance. China dominates global rare earth mining and, more importantly, the specialized processing of elements like neodymium and dysprosium used in permanent magnets found in electric vehicle motors, wind turbines, smartphones, and military hardware. In October and November 2025, China's Ministry of Commerce expanded export controls requiring foreign companies to obtain government approval before exporting magnets containing even trace amounts of Chinese-origin rare earth material, a policy the Center for Strategic and International Studies described as a serious threat to US defense and manufacturing supply chains.

Where the statement becomes misleading is in blurring supply chain dependency with basic physics. Permanent magnetism has been studied and understood since the 19th century, and magnetic field behavior is among the most thoroughly documented areas of classical physics, taught in secondary schools worldwide. Rare earth elements are raw materials that make certain magnets far more powerful for their size, but ordinary magnets, including those used in refrigerator doors and in electric motors for decades before rare earth magnets existed, do not require rare earth elements at all and are not scientifically mysterious in any sense. Trump has also made separate, factually incorrect claims about magnets in other contexts, including a widely reported assertion that water interferes with magnets, which is not true for ordinary permanent magnets used outside a few specialized industrial demagnetization processes.

So the claim operates on two separate levels. As hyperbole about the underrated importance of the rare earth magnet supply chain in modern manufacturing and defense, it points to a genuine and serious dependency on Chinese processing capacity, one that trade analysts and national security researchers treat as a real vulnerability. As a literal statement about scientific understanding of magnetism, it is false, since the physics of magnets is well established and has been for well over a century, taught at a basic level in schools around the world. Independent reporters covering the remarks noted the irony that the same week featured serious diplomatic discussion of a real critical minerals shortage, yet the headline focus became the odd phrasing rather than the substantive supply chain risk it was meant to describe.

Common claims

• Trump literally believes nobody understands what magnets are.Partly true - the quote is authentic but used as hyperbole about rare earth supply chains
• The physics of magnetism is poorly understood by scientists.Not supported - magnetism is well established classical physics
• China has significant control over the rare earth magnet supply chain.Supported - confirmed by trade policy analysts and China's own 2025 export control expansion
• All magnets require rare earth elements to function.Not supported - ordinary permanent magnets have existed for centuries without rare earth elements

Evidence hierarchy

All sources

• Fact Check: Posts depict real Trump quote: 'Nobody knows what a magnet is'Yahoo News / AP · 2025
• China's New Rare Earth and Magnet Restrictions Threaten US Defense Supply ChainsCenter for Strategic and International Studies · 2025
• China tightens export controls on rare-earth metals: Why this mattersAl Jazeera · 2025
• 'Breathtaking Stupidity': Trump's Latest Bizarre Claim Quickly Attracts CriticsAOL / Rolling Stone · 2025

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