“So much in the world depends on you.”Of all the many moving words in President Volodymyr Zelensky’s speech to a joint meeting of the U.S. Congress, those eight may have been the most urgent and important.Zelensky came to Washington to speak for his nation. He came to Washington to ask for assistance. But above all, he came to Washington to recall Americans to themselves. He came to say, My embattled people believe in you.

This is an edition of The Atlantic Daily, a newsletter that guides you through the biggest stories of the day, helps you discover new ideas, and recommends the best in culture. Sign up for it here.Some very serious and unfunny things happened this year in American politics. Today, though, we are not going to talk about those things. Instead, we will examine a few of the times our elected leaders made us laugh—with them or at them.But first, here are three new stories from The Atlantic.

Since the early days of the coronavirus pandemic, a niche subset of experimental vaccines has offered the world a tantalizing promise: a sustained slowdown in the spread of disease. Formulated to spritz protection into the body via the nose or the mouth—the same portals of entry most accessible to the virus itself—mucosal vaccines could head SARS-CoV-2 off at the pass, stamping out infection to a degree that their injectable counterparts might never hope to achieve.

Nothing about Barbara Costello’s favorite Christmas recipe is all that fancy. The overnight breakfast casserole she makes every year doesn’t call for much more than eggs, milk, sausage, cheese, and bread thrown into a baking dish—a recipe she clipped from a local newspaper nearly 50 years ago.

This is an edition of Up for Debate, a newsletter by Conor Friedersdorf. On Wednesdays, he rounds up timely conversations and solicits reader responses to one thought-provoking question. Later, he publishes some thoughtful replies. Sign up for the newsletter here.Question of the WeekTo complete this week’s question I had a conversation with OpenAI’s chatbot, GPT-3 (which anyone can try). “Every week I ask readers of my newsletter a different question,” I wrote.

When Volodymyr Zelensky arrives in Washington—his first time leaving Ukraine since the Russian invasion last winter—he will find a city that is even more obsessed with itself than usual. The Republicans are about to take over the House with a tiny majority and a passel of empowered kooks, and a congressional committee has recommended that a former president of the United States be prosecuted for an attempt to defeat the constitutional transfer of power.