London (CNN) โ Wealthy business leaders are turning on US President Donald Trump over his plan to impose a colossal set of tariffs on Americaโs trading partners, as losses mount on stock markets around the world.
Billionaire investor Bill Ackman, who endorsed Trumpโs 2024 presidential bid, warned Sunday that going ahead with the new tariffs was tantamount to launching an โeconomic nuclear war.โ
On Wednesday, Trump said he would impose significantly higher โreciprocalโ tariffs on dozens of countries that have the highest trade imbalances with the United States.

In a post on X, Ackman said โbusiness investment will grind to a halt, (and) consumers will close their walletsโ if the new levies do indeed come into force. โWe will severely damage our reputation with the rest of the world that will take years and potentially decades to rehabilitate,โ he added in the post, which was viewed 10.6 million times.
Unless Trump changes tack, โwe are heading for a self-induced, economic nuclear winter, and we should start hunkering down,โ the CEO of Pershing Square Capital Management warned.
โWhat CEO and what board of directors will be comfortable making large, long-term economic commitments in our country in the middle of an economic nuclear war?โ he said, adding that โthe president is losing the confidence of business leaders around the globe.โ
Already Trumpโs baseline 10% tariff on all goods imports into the US went into effect Saturday, and dozens of economies are bracing for even higher levies starting Wednesday. Those harder-hit countries include major US trading partners China and the European Union, which face new duties of 34% and 20% respectively.
Other billionaires and wealthy business leaders have also openly criticized Trumpโs tariff agenda in recent days as fear over its economic fallout gripped markets.
Jamie Dimon, CEO of JPMorgan Chase, warned Monday that the tariffs threatened to raise prices, drive the global economy into a downturn and weaken Americaโs standing in the world.
โThe recent tariffs will likely increase inflation and are causing many to consider a greater probability of a recession,โ Dimon said in an annual letter to shareholders. โWhether or not the menu of tariffs causes a recession remains in question, but it will slow down growth.โ
Billionaire Stanley Druckenmiller, founder of the Duquesne Family Office, an investment firm, said in a post on X Monday that he did โnot support tariffs exceeding 10%.โ Druckenmiller is worth an estimated $11 billion, according to the Bloomberg Billionaires Index.
Later in the day, billionaire Ken Fisher, the founder and executive chairman of Fisher Investments, said on X: โWhat Trump unveiled (last) Wednesday is stupid, wrong, arrogantly extreme, ignorant trade-wise and addressing a non-problem with misguided tools. Yet, as near as I can tell it will fade and fail and the fear is bigger than the problem, which from here is bullish.โ
Fisher noted that he does not typically comment publicly on presidential actions, โbut on tariffs Trump is beyond the pale by a long shot.โ
Even Elon Musk โ the worldโs richest man and top Trump acolyte โ said Sunday that he hoped for a โzero-tariff situationโ between Europe and the US. In an interview with Italyโs Deputy Prime Minister Matteo Salvini via video link, Musk said he wanted to see an effective โfree-trade zoneโ created between Europe and North America.
Echoing Ackman, Simon MacAdam, deputy chief global economist at consultancy Capital Economics, said businesses were likely to hold off making investments due, in large part, to the โsheer uncertaintyโ of Trumpโs tariff policy.
โIf youโre a mid-sized or even a large-cap company, youโre going to be very hesitant about what to do,โ he said.
โIf those tariffs are going to be negotiated back down again in a few monthsโ time, then youโd be wasting your time investing potentially hundreds of millions of dollars in new plantsโฆ in the US,โ he told CNN.
In his post, Ackman said the new tariffs were โmassiveโ and โdisproportionate,โ saying: โThis is not what we voted for.โ He called for a 90-day โtime outโ in which Trump could negotiate with trading partners to โresolve unfair asymmetric tariffs deals.โ
Trump has said his tariff agenda is designed to redress years of lopsided trade between America and its partners, caused, in his view, by other countries imposing steeper tariffs on US goods imported into their markets than the US does on theirs.
But investors are clearly not convinced by the wisdom of Trumpโs plan. Stock markets in Asia and Europe plunged Monday and futures pointed to another bad day for US stocks, following Trumpโs tariffs announcement last Wednesday.
The-CNN-Wire
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