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Notably, the National Institutes of Health abandoned clinical trials of the drug in June, reporting it \"was very unlikely to be beneficial to hospitalized patients with COVID-19,\" and the Food and Drug Administration in July revoked its emergency use authorization, warning it can cause \"heart rhythm problems and other safety issues, including blood and lymph system disorders, kidney injuries and liver problems and failure.\"

The nation's top infectious disease expert, Dr. Anthony Fauci, reiterated earlier Tuesday that the drug \"is not effective\" in treating the virus, while FDA Commissioner Dr. Stephen Hahn has recently lamented that it has become \"politicized\" in the midst of a pandemic.

\"PHOTO:
Jim Watson/AFP via Getty Images
PHOTO: President Donald Trump speaks to the press in the Brady Briefing Room of the White House in Washington,on July 28, 2020.
>

\"The overwhelming, prevailing clinical trials that have looked at the efficacy of hydroxychloroquine have indicated that it is not effective in coronavirus disease,\" Fauci told ABC News Chief Anchor George Stephanopoulos on \"Good Morning America,\" just hours after the president's retweet Monday night.

In the video that Trump retweeted, his son directly shared and which Twitter later removed for violating its \"misinformation policy,\" a group of what appeared to be doctors downplayed the effectiveness of masks and lockdowns and praised hydroxychloroquine.

Asked if he believes Fauci misled the country on hydroxychloroquine, as some of his Monday night retweets read -- along with the hashtag \"Fire Fauci\" -- Trump said \"no -- not at all,\" adding he didn't know Fauci's stance on the drug before applauding the doctor's \"high approval rating.\"

Pres. Trump notes Dr. Fauci \"has a very good approval rating\" while working for his administration.

\"He's got this high approval rating—so why don't I have a high approval rating, and the administration, with respect to the virus?\" https://t.co/SEjTTFYNPu pic.twitter.com/uaCa38zvjd

— ABC News Politics (@ABCPolitics) July 28, 2020

\"He's got a very good approval rating, and I like that -- it's good -- because remember, he's working for this administration,\" Trump said. \"He's got this high approval rating, so why don't I have a high approval rating with respect -- and the administration -- with respect to the virus?\"

\"It sort of is curious a man works for us -- with us -- very closely, Dr. Fauci -- and Dr. (Deborah) Birx, also highly thought of -- and yet they're highly thought of, but nobody likes me,\" Trump added. \"It can only be my personality, that's all.\"

Earlier Tuesday, the federal government announced a $765 million agreement to turn Kodak into a pharmaceutical company to produce ingredients for generic drugs. The deal will enable Kodak to produce a quarter of all active ingredients for drugs in the U.S. in four to five years, according to administration officials.

Trump called it \"one of the most important deals in the history of U.S. pharmaceutical industries.\"

What to know about the coronavirus:

Tune into ABC at 1 p.m. ET and ABC News Live at 4 p.m. ET every weekday for special coverage of the novel coronavirus with the full ABC News team, including the latest news, context and analysis.

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