In years to come, students studying the presidency of Donald Trump will have questions for their teachers.
They will want to know how one man was able to get so many people to go against behavioural norms. And how he got people to act in ways detrimental to their own reputations and health.
The United States President has had a week for which the word bizarre is totally inadequate. It started with his mini-tornado of a performance at the presidential debate, blew through the discovery that he had Covid-19, the White House was a cluster scene, and threw up some irresponsible stunts.
Today, after dozens of positive tests among high-profile Republicans, the vice-presidential debate is due to go ahead with extra safety precautions. Mike Pence and Kamala Harris will be about 3.6m apart with a sneeze guard between them.
For days, the US President's doctors and spokespeople have evaded questions about when Trump had his last negative coronavirus result before testing positive on Friday.
Some patients experience difficulty several days into infection. Yet Trump appeared to go through that last weekend - causing his evacuation to Walter Reed hospital - just a day after his positive test was announced. His medical team discharged him five days after the test, yet said he would not be "out of the woods" for a week.
The world's most famous coronavirus patient has hardly been a model one, downplaying the virus once again.
Trump's return chopper trip to the White House on Tuesday was filmed for a campaign video and he made removing his mask a showpiece. A video filmed by staff showed the infectious leader speaking maskless to camera, urging people not to fear the virus. Not for Trump a message about learning from his mistakes, managing the risk and encouraging his supporters to wear masks. His health care is also far beyond anyone else's.
Trump waved at fans on Monday with masked security agents in his vehicle. He should not have been allowed to mix with people or move outside his quarters at Walter Reed. Yet he was photographed and filmed - while maskless - by his staff there. The White House said that the trip outside was approved by Trump's doctors.
There was anger on social media from people who said they had sacrificed time with family members because of the virus while Trump ignored health guidelines to isolate.
These were the Covid versions of the incident when protesters were cleared away with tear gas in June so Trump could walk to a Washington church. People were put in harm's way so the President could do something trivial that was meant to make him appear strong.
There must be a long list of officials and staff who have done his bidding. He has focused on keeping supporters and Republican officials loyal. Trump's views about mask-wearing have become widespread in the party.
Rules appear to be for others. He also arrogantly and recklessly exposes people to risks.
The President's niece, Mary Trump, told NPR that the US is "in the horrible place we're in" because members of the family see illness in anyone as "a display of unforgivable weakness".
How is it that few people can say no to Trump? It seems to be more about attitude and a willingness to push boundaries than simply the power of the office.