‘Asked if she has questions about the President’s capability to serve in the office right now, Pelosi said, “What I said about the President was that we don’t know if somebody who — I’ve not said this, I’ve quoted others to say there are those who say that when you’re on steroids and/or if you have Covid-19 or both that there may be some impairment of judgment, but again that’s for the doctors and the scientists to determine.”
The comments prompted an angry retort from Trump, who retweeted several messages suggesting that Pelosi is trying to mount a coup. Trump ultimately responded to Pelosi: “Crazy Nancy is the one who should be under observation. They don’t call her Crazy for nothing!”

Trump puts his own spin on his health as doctors reveal little
Senate Majority Leader Mitch McConnell dismissed the efforts by House Democrats as “absurd” Friday.
“That’s absurd. Absolutely absurd. Again, right here in the last three weeks before the election, I think those wild comments should be largely discounted,” he said speaking at a news conference in Kentucky.
The new proposal would create a commission of 17 people — eight appointed by Republicans and eight appointed by Democrats — as well as a chair selected by the entire body. That commission could study the President’s health as well as request an exam of the President. If the President refused, the commission could make a judgment on the President’s condition with the information they already had. A majority of the commission could vote to remove the President, but only with the Vice President….’

— via CNNPolitics

Finally, this possibility is being taken seriously, but for the wrong reasons. Trump’s malignant narcissism and possible cognitive deterioration, have raised questions about his fitness to serve since soon after his election. As I have written about several times here, consideration of invoking the 25th amendment process were led by a group of concerned psychiatrists. I am glad the issue is being raised again, but the cognitive and personality impairments caused by Covid infection and/or steroid use are transient. A bipartisan investigation would be deadlocked for so long that it would be a moot point, even if it were not three months to Inauguration Day. Related: What happens if a nominee dies shortly before or after the election. Washington Post: “It’s complicated.” To what extent would these considerations apply if a nominee were unfit to continue his candidacy?