PANews reported on April 8th that Ken Fisher, founder of Fisher Investments and billionaire, fiercely criticized Trump's latest tariff policy on social platform X, calling it "stupid, wrong, and extreme". He pointed out that the tariff policy attempts to solve the "false proposition" of the US trade deficit. He believes that trade deficits have never had a causal or predictive effect on the economy, and Trump's related remarks are "completely wrong". Additionally, Fisher criticized that the policy implementation faces many practical obstacles, including insufficient customs enforcement and legal challenges.

Fisher emphasized that market fears about the tariff policy far exceed actual issues, which might actually be a bullish signal. He predicted that the market reaction this time might be similar to the stock market correction in 1998, which ultimately achieved a 26% annual return rate. He also warned that if Republican congressional members cannot quickly restrain Trump's tariff policy, future midterm elections might become a "bloody slaughterhouse".