Abdul El-Sayed, a progressive former public health official, narrowly won the Democratic nomination for Michigan’s crucial Senate race. He defeated Haley Stevens, a moderate four-term House member, in a bitter and expensive primary defined in large part by fierce debates over Israel.

The final margin ended up being especially close — less than a single percentage point, as of this afternoon — but it is still the most significant triumph of the year so far for the country’s ascendant political left. If elected, El-Sayed would become the nation’s first Muslim senator.

But first, he will need to defeat former Representative Mike Rogers, a Republican, in November’s general election. That may not be easy for an unabashedly left-wing candidate in a state that has voted twice for President Trump, as Stevens and other mainstream Democrats have argued in recent weeks. But a plurality of Michigan Democrats disagreed, opting to test the theory that a progressive could win in a battleground state.

To earn a seat in Congress, El-Sayed will most likely need to win over the Black and rural voters who favored Stevens in yesterday’s election. After conceding today, Stevens offered El-Sayed her “full support,” and El-Sayed called her “one of the most committed public servants that you’ll ever meet.”

A new C.D.C. director is confirmed

The Senate voted today to confirm Erica Schwartz, a doctor who served as deputy surgeon general in the first Trump administration, as the new leader of the C.D.C. She is the agency’s first full-time director in nearly a year.

Schwartz has repeatedly affirmed the safety and efficacy of childhood vaccines. The last C.D.C. leader was fired by Health Secretary Robert F. Kennedy Jr. over her refusal to accept the recommendations of his handpicked panel of vaccine advisers. The agency has lost about a third of its staff members to layoffs and resignations since Kennedy took office.

In other Trump administration news: The cost of Trump’s namesake warships is now expected to be at least 50 percent more than estimated.

Ukraine is running desperately low on interceptors

Russian forces launched a major missile attack on Ukraine’s capital early this morning, killing at least 17 people and wounding dozens more. Not a single one of the 24 ballistic missiles or four hypersonic missiles that Russia used in the attack was shot down, Ukrainian officials said, indicating that Kyiv has been left largely defenseless.

Ukraine is running out of interceptor missiles for its Patriot batteries, the only reliable defense against Russia’s most sophisticated missiles.

For more: These charts show how the war in Ukraine is being fought in the skies.

Hacks of U.S. water systems follow years of warnings

Federal and state officials are racing to address a widespread assault on the nation’s water supply that they believe to be the work of Iranian hackers. At least a dozen states have reported possible attacks to the F.B.I., though there are no indications so far that any drinking water has been affected.

The attacks come after efforts to bolster the cyberdefenses of America’s water systems have been either blocked or ignored for years. My colleague Dustin Volz explains why the country’s water systems are so vulnerable.

More top news

THE EVENING QUIZ

This question was inspired by a recent edition of the newsletter. Click an answer to see if you’re right.

One of the world’s smallest countries adopted the new name Naoero. What was it previously called?

TIME TO UNWIND

What are the best thrillers of the 21st century?

My colleagues at the Book Review posed that question to hundreds of crime fiction writers, librarians, editors and critics. Famous authors like Lee Child, S.A. Cosby and Freida McFadden submitted ballots, and you can, too.

After tallying all the votes, we came up with a list of the 50 best thrillers since 2000. Check it out, and find a book to bring on your next vacation.

Go outside and just listen

We live in a visual world, with an ever-growing number of screens competing for our attention. But Jacek Smolicki tries not to get caught up in all that. He has spent his career perfecting the fine art of capturing natural sounds. “We may be hearing, but not listening,” he said.

To understand what it’s like to capture a sound diary of New York City, our reporter and a photographer joined Smolicki on a recent “soundwalk.” They blocked out the rest of the world for a while and used sensitive microphones to record the sounds coming from a hot dog cart, the Brooklyn Bridge and a Central Park pond. Listen here.

A town with 9,000 horses

Every winter, thousands of elite show-jumping horses migrate to a village north of Miami where it rarely gets too chilly. For at least a few months, they are joined by professional equestrian competitors and others in the industry, making the town — Wellington, Fla. — something of a global capital for the sport.

Now, local officials have approved a more-than-$750 million development, with the hope of keeping the horses around all year. Many riders have purchased homes; residents include Bruce Springsteen’s daughter, Jessica, and Michael Bloomberg’s daughter Georgina. See what the community is like.

Have a majestic evening.

Thanks for reading. I’ll be back tomorrow. — Matthew

Eli Cohen was our photo editor.

We welcome your feedback. Reach us at evening@nytimes.com.