"In a since-deleted X post, the hedge fund billionaire said late on Friday that Trump's call for a 10% cap on credit card interest for one year was a "mistake" that could lead to millions having their cards canceled.

"This is a mistake President," Ackman wrote. "Without being able to charge rates adequate enough to cover losses and to earn an adequate return on equity, credit card lenders will cancel cards for millions of consumers who will have to turn to loan sharks for credit at rates higher than and on terms inferior to what they previously paid.""