At dawn this morning, workers loaded couches and tables into a moving truck parked outside the West Wing. Men wearing white coveralls and carrying roller brushes and paint cans walked across the north driveway. Inside the White House, pictures of the 45th president had been removed from the walls. Only the hooks remained, ready for a new set of portraits of the 46th.

A lone Donald Trump press deputy, Judd Deere, sat in his small office, writing a note on a piece of stationery to whomever would be taking over his desk in a few hours. Deere was attempting to describe what it’s like to work in the building. When I looked in at noon, after the Trump presidency had officially ended, he was gone, his desk cleared. Even the magazine racks hanging on the wall had been emptied.

President Donald Trump has long exulted in superlatives. The first. The best. The most. The greatest. “No president has ever done what I’ve done,” he boasts. “No president has ever even come close,” he says. But as his four years in office draw to an end, there’s only one title to which he can lay claim: Donald Trump is the worst president America has ever had.

In December 2019, he became the third president to be impeached. Last week, Trump entered a category all his own, becoming the first president to be impeached twice. But impeachment, which depends in part on the makeup of Congress, is not the most objective standard. What does being the worst president actually mean? And is there even any value, at the bitter end of a bad presidency, in spending energy on judging a pageant of failed presidencies?

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Tomorrow, pending calamity or misfortune, Joe Biden will take the oath of office and become president of the United States. In that moment, the United States’ approach to climate change will invert. Not least because Biden may finish his speech, walk inside the Capitol, and sign a letter committing the U.S. to rejoining the Paris Agreement.

Yet even if that “day one” promise isn’t kept until January 21, Biden’s inauguration will end an ugly period. Starting tomorrow, the highest levels of the federal government will stop intentionally, gleefully trying to make climate change worse. The Trump administration has progressed from enabling construction of fossil-fuel infrastructure to openly trying to make climate change worse. It has smuggled nonsensical math into law with the consequence of making Americans pay more at the pump; its supposedly marquee climate policy may have actually increased carbon pollution. In the dozen or so weeks since the election, it has undertaken a final debauchery of environmental rollbacks, finalizing more than a dozen new rules. One measure, borrowed from the playbook of Big Tobacco, restricts the Environmental Protection Agency’s ability to consider medical studies in its rulemaking.

I’ve been thinking about Barbara Tuchman’s medieval history, A Distant Mirror, over the past couple of weeks. The book is a masterful work of anti-romance, a cold-eyed look at how generations of aristocrats and royalty waged one of the longest wars in recorded history, all while claiming the mantle of a benevolent God. The disabusing begins early. In the introduction, Tuchman examines the ideal of chivalry and finds, beneath the poetry and codes of honor, little more than myth and delusion.

Knights “were supposed, in theory, to serve as defenders of the Faith, upholders of justice, champions of the oppressed,” Tuchman writes. “In practice, they were themselves the oppressors, and by the 14th century, the violence and lawlessness of men of the sword had become a major agency of disorder.”

What should have been a week-long celebration of the resilience of American democracy has turned into a dark circus. Instead of citizens lining Pennsylvania Avenue to cheer and greet a new president, all of downtown Washington, D.C., is an armed camp. Soldiers patrol the streets while workers clean excrement off the walls of the Capitol, a perfect tableau for the end of the short and ghastly age of Trump.

We are expecting far too much of Joe Biden and Kamala Harris if we think they can fix all of the damage Donald Trump did to the republic. Presidents and vice presidents are not wizards. They cannot rewind history. They cannot single-handedly make us better people.

However, I do believe that Biden can inspire the American people to regain one of the most important virtues Trump destroyed: seriousness, our understanding that ideas, actions, and words matter.

When Franklin D. Roosevelt became president in 1932, the nation was facing concentric crises: the immediate, house-on-fire disaster of rolling bank closures; the broader economic depression; and, beyond that, deeply entrenched problems that the depression had highlighted, including elderly poverty. Roosevelt’s first 100 days addressed the first two crises with historic directness. He reopened the banks and directly employed thousands of Americans through measures such as the Civilian Conservation Corps. Then, near the end of his first term, he signed the Social Security Act, which has reduced senior poverty and become one of the most popular federal programs in the United States.

President Joe Biden also faces concentric crises, which move outward toward the future as you unpeel them: the biological threat of the pandemic, the economic recession, and, beyond that, the entrenched problem of child poverty. He also has to contend with the problem casting a shadow over the whole century, the existential crisis of climate change.

In Washington, D.C. today, Joe Biden took the oath of office shortly before noon, becoming the 46th president of the United States of America. In front of a small, socially distanced, and well-guarded audience on the West Front of the U.S. Capitol, President Biden and Vice President Kamala Harris were sworn in. The singers Lady Gaga, Jennifer Lopez, and Garth Brooks performed; the poet Amanda Gorman gave a reading; and Biden delivered his inaugural address to the nation. Gathered below are scenes from a unique moment in American history.

So what if he was bad at it?

The five years of the Trump era—which began with his descent down the gilded escalator in Trump Tower in 2015 and are ending with a massive military presence in the nation’s capital to protect the transfer of power to his successor—brought a sustained assault on self-government. This assault was most often futile, almost always buffoonish, and, as the conversion of the seat of the federal government into an armed fortress demonstrates, unquestionably real.

Throughout the Trump era, some have argued that Trump’s incompetence rendered his authoritarian aspirations inconsequential.

“Our weak, ranting, infected-by-Covid chief executive is not plotting a coup, because a term like ‘plotting’ implies capabilities that he conspicuously lacks,” wrote the New York Times columnist Ross Douthat in October, describing the president as a “noisy weakling.” Douthat has since re-evaluated his position, but for a long time he was the most articulate proponent of the argument that Trump was not as dangerous as his opponents believed.

“Drain the swamp.”

Of all Trump’s lies, that was one of the most puzzling. It’s not just that Trump himself was and is crooked, or even that he so obviously likes and admires crooks. It’s that Trump’s particular form of crookedness was exactly the kind of crookedness that people have in mind when they imagine Washington, D.C., as a “swamp.”

Trump’s first Manhattan real-estate deal—the first deal on which his employer-father allowed him to take the lead—was the redevelopment of a bankrupt historic hotel near New York’s Grand Central Terminal. The deal needed complex permissions from the city and the state. To obtain those permissions, Trump hired the famous fixer Roy Cohn. Cohn secured him a $400 million tax abatement plus other special favors, including a waiver of all urban-preservation rules. After the deal was done, the city official who bestowed the favors was hired as a partner in Cohn’s law firm. A decade later, that official went to federal prison for corruption crimes.

Editor’s Note: Every Wednesday, James Hamblin takes questions from readers about health-related curiosities, concerns, and obsessions. Have one? Email him at paging.dr.hamblin@theatlantic.com.

Dear Dr. Hamblin,

I’m still confused about what our lives will be like after we are vaccinated. As I understand it, it will still be possible to get the virus, but hopefully the course won’t be as severe or life-threatening. And we are going to have people who won’t even get the vaccine. Do you foresee us still wearing masks for the next year or two? I hate to even type this question.

Nancy Bernardy

New London, New Hampshire

Nancy,

I can’t wait to stop wearing masks. I want to go out without a mask so badly that I’ve been dreaming about it. That’s how far the pandemic has lowered the ambitions of my dreams.