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Regeneron Co-Founder: 'No side-effects' from our treatment with Trump's other meds


The Co-Founder, President and Chief Scientific Officer of Regeneron, Dr. George Yancopoulos, joins Hallie Jackson after President Trump was treated with his company's antiviral cocktail. Yancopoulos refutes the idea of a close relationship between the company and the White House, saying they are "adhering to the highest level of ethics."