'This is a mistake President': Bill Ackman responds to Trump's call for a one-year 10% cap on credit card interest

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• Bill Ackman said President Donald Trump's call for a one-year cap on credit card interest was a "mistake."
• The hedge fund billionaire said a rate cap could lead to millions having credit cards canceled.
• Trump on Friday called for a 10% cap on credit card interest for one year.

Bill Ackman did not mince words when giving his opinion of President Donald Trump's call for a temporary cap on credit card rates.

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