Careful, Junior

Sources said Donald Trump Jr. is deeply upset by his father’s decision to drive around Walter Reed National Military Medical Center last night with members of the Secret Service while he was infected with COVID-19. “Don Jr. thinks Trump is acting crazy,” one of the sources told me.

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According to sources, Don Jr. has told friends that he tried lobbying Ivanka Trump, Eric Trump, and Jared Kushner to convince the president that he needs to stop acting unstable. “Don Jr. has said he wants to stage an intervention, but Jared and Ivanka keep telling Trump how great he’s doing,” a source said. Don Jr. is said to be reluctant to confront his father alone. “Don said, ‘I’m not going to be the only one to tell him he’s acting crazy,’” the source added.

One area where the family seems united is over the president’s manic tweeting early Monday morning. After Trump sent out more than a dozen all-caps tweets, the Trump children told people they want Trump to stop. “They’re all worried. They’ve tried to get him to stop tweeting,” a source close to the family told me.

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Trump has been prescribed drugs that medical experts say can seriously impair his cognitive function.

  Vanity Fair

I don't know how you'd know the difference unless they made him sane.

According to a Trump family friend, Trump’s father, Fred Trump Sr., insisted on working even after his Alzheimer’s disease advanced in the 1990s. “To retire is to expire!” Fred Sr. would say. The friend said that as Fred Sr.’s disease worsened––he once came down the stairs wearing three neckties––the family created a system so that Fred could think he was still running the Trump Organization. Every day Fred Sr. would go to the office in Brooklyn and they would give him blank papers to sort through and sign. The phone on Fred’s desk was set up so that it could only dial out to his secretary.

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The White House did not immediately respond for comment.

And, Junior....he's not "acting".

...but hey, do what you want...you will anyway.