Bill Ackman, a billionaire fund manager who supported Donald Trump’s campaign for President, expressed concern about the diminishing trust of business leaders in the US leader and suggested a pause in the trade war.

“The president has an opportunity to call a 90-day time out,” Ackman said in a post on X, to resolve trade issues via negotiation.

Ackman warned that escalating the trade conflict to a global scale could have severe consequences, such as a significant decline in business investments, reduced consumer spending, and long-lasting damage to the country’s international reputation that may take years or even decades to repair.