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In this June 13, 2012, file photo, JPMorgan Chase CEO Jamie Dimon testifies before the Senate Banking Committee on Capitol Hill in Washington.

J. Scott Applewhite/The Associated Press

The United States’ most powerful banker, JPMorgan Chase & Co chief executive Jamie Dimon, caused a stir Wednesday when he said he would be able to beat U.S. President Donald Trump in an election.

Mr. Dimon immediately walked those comments back and said he isn’t running for the country’s top office.

Mr. Dimon, a brash Wall Street executive with a history of making off-the-cuff remarks, told reporters at an event at JPMorgan headquarters Wednesday that “I think I could beat Trump.”

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In the remarks, first reported by the business network CNBC, Mr. Dimon also said he is just as tough as Mr. Trump and smarter than the President. Further, Mr. Dimon made comments that his wealth was earned, and not given to him by his father, another jab at the President.

Shortly after the event ended, Mr. Dimon released a statement saying he shouldn’t have made the comments and indicating they were prompted by frustration over Washington gridlock on important issues.

“I get frustrated because I want all sides to come together to help solve big problems,” Mr. Dimon said, adding that he’s not running for president.

Mr. Dimon has a mixed relationship with the President. The banking executive fully supported Mr. Trump’s corporate tax cuts that passed late last year, but has expressed frustration with the White House’s positions on immigration and trade.

Mr. Dimon, 62, is chairman of the Business Roundtable, a powerful lobbying group that represents the CEOs of the United States’ largest corporations, and is often seen as a voice for American business.