Carl Icahn

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Carl Icahn (Associated Press) **FILE**

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In this March 16, 2010, file photo, financier Carl Icahn poses for photos upon arriving for the annual New York City Police Foundation Gala in New York. (AP Photo/Henny Ray Abrams, File)

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This Oct. 24, 2014 photo shows the entrance to the Trump Taj Mahal Casino resort in Atlantic City N.J. Billionaire investor Carl Icahn has revealed in documents filed with federal securities regulators that he sold the shuttered Taj Mahal, which Donald Trump, the now-president of the United States built for $1.2 billion in 1990, for $50 million to Hard Rock International, or about 4 cents on the dollar from what Trump spent on it. (AP Photo/Wayne Parry)

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FILE - This Nov. 3, 2014, file photo, shows a plaque bearing the likeness of Donald Trump at the entrance to the Trump Taj Mahal Casino resort in Atlantic City N.J. Billionaire investor Carl Icahn has revealed in documents filed with federal securities regulators that he sold the shuttered Taj Mahal, which the now-president of the United States built for $1.2 billion in 1990, for $50 million to Hard Rock International, or about 4 cents on the dollar from what Trump spent on it. (AP Photo/Wayne Parry)

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This Oct. 5, 2016 photo shows the exterior of the Trump Taj Mahal casino in Atlantic City, N.J. On March 1, 2017, billionaire investor Carl Icahn sold the shuttered casino to Hard Rock International, which plans to rebrand and reopen it. (AP Photo/Wayne Parry)

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This April 24, 2015, photo shows the exterior of the Trump Taj Mahal casino in Atlantic City, N.J. On Wednesday, March 1, 2017, owner Carl Icahn reached a deal to sell the casino, which shut down on Oct. 10, 2016, to Hard Rock International and two New Jersey investors. The sale price was not divulged. (AP Photo/Wayne Parry)

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This April 24, 2015, photo shows the exterior of the Trump Taj Mahal casino in Atlantic City, N.J. On Wednesday, March 1, 2017, owner Carl Icahn reached a deal to sell the casino, which shut down on Oct. 10, 2016, to Hard Rock International and two New Jersey investors. The sale price was not divulged. (AP Photo/Wayne Parry)

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This July 1, 2016 photo shows striking union members on the picket line shortly after a strike began against the Trump Taj Mahal casino in Atlantic City, N.J. On Wednesday, March 1, 2017, owner Carl Icahn reached a deal to sell the casino, which shut down on Oct. 10, 2016, to Hard Rock International and two New Jersey investors. The sale price was not divulged. (AP Photo/Wayne Parry)

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This July 1, 2016, photo shows striking union members on the picket line shortly after a strike began against the Trump Taj Mahal casino in Atlantic City, N.J. On Wednesday, March 1, 2017, owner Carl Icahn reached a deal to sell the casino, which shut down on Oct. 10, 2016, to Hard Rock International and two New Jersey investors. The sale price was not divulged. (AP Photo/Wayne Parry)

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Financier Carl Icahn wrote that the Chesapeake Energy board had failed its basic function of overseeing management in “dramatic fashion.” (Associated Press)

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FILE - In this Oct. 11, 2007 file photo, activist investor Carl Icahn speaks at the World Business Forum in New York. Activist investor Carl Icahn declared an end to his brief truce with boutique film studio Lions Gate Entertainment Corp. on Tuesday, July 20, 2010, renewing his bid to take over the company and replace its board.(AP Photo/Mark Lennihan, file)