• President Trump has supported the antigovernment demonstrations, but the unrest complicates a decision on the future of the Iran nuclear deal.
Longtime senator to “hang up the gloves”
• Orrin Hatch of Utah — the Senate’s longest-serving Republican — will retire at the end of the year, rebuffing President Trump’s request that he seek re-election.
The announcement opens the door for Mitt Romney, a critic of the president’s, to run for the seat. (By Tuesday evening, Mr. Romney had updated his Twitter profile to change his location to Holladay, Utah, from Massachusetts.)
• The Senate returns today, just weeks before a possible government shutdown. Newly emboldened Democrats have a list of demands, including the protection of young undocumented immigrants.
In pursuit of liquid gold
• In the second part of our series examining the industry of addiction treatment, we look at the lucrative business of urine testing.
It has long been a way for clinics to ensure that former drug users are staying clean. But with the opioid crisis and the expanded availability of insurance under the Affordable Care Act, urinalysis costs have soared.
• We also examined why the U.S. spends so much on health care. Said one Harvard physician: “The U.S. just isn’t that different from other developed countries in how much health care we use. It is very different in how much we pay for it.”
“The Daily”: Shifting dynamics on North Korea
• If North Korea and South Korea talk, where does that leave the U.S.?
• The “Today” show on NBC will have two women as its main hosts for the first time. Hoda Kotb will join Savannah Guthrie to replace Matt Lauer, who was fired over allegations of inappropriate sexual behavior.
Separately, Vice Media placed its president and its chief digital officer on leave after accusations of sexual harassment.
And the University of Arizona fired its football coach, Rich Rodriguez, after an investigation into misconduct.
• China’s largest shipping company has poured billions into buying seaports around the world. But the site of its latest big foreign investment is more than 1,600 miles from the ocean: Kazakhstan.
• Researchers in Finland have developed artificial intelligence that can generate images of celebrity look-alikes — and another system that tests how believable they are.
Tips, both new and old, for a more fulfilling life.
• We’ve long known that dietary fiber is good for us. New research explains why.
• How smart a traveler are you?
• Recipe of the day: Craving noodles? Try them with chicken, ginger and mushrooms.
• The case for the subway
• A crimp in colleges’ revenue
Many U.S. universities that had put the 2008 recession behind them are making new rounds of budget cuts, in large part because they have fewer international students, who generally pay more in tuition.
Changing conditions abroad and tougher immigration policies in the U.S. have contributed to the decline, college administrators say.
• In memoriam
Thomas Monson, the president of the Church of Jesus Christ of Latter-day Saints, enlarged the ranks of female missionaries but rebuffed demands to ordain women as priests. The Mormon leader also refused to alter the church’s position on same-sex marriage. He was 90.
John Portman, an architect and developer, revolutionized hotel designs with soaring futuristic atriums and transformed cityscapes around the world. He was 93.
Rick Hall, a music producer, turned small-town Alabama into a crucible of soul, country, pop and rock with his studio in Muscle Shoals. He was 85.
• Best of late-night TV
Back from vacation, Stephen Colbert returned to one of his favorite targets: President Trump.
• Quotation of the day
“I was an amateur boxer in my youth, and I’ve brought that fighting spirit with me to Washington. But every good fighter knows when to hang up the gloves. And for me, that time is soon approaching.”
— Senator Orrin Hatch, Republican of Utah, who announced he would not seek an eighth term.
“Charlie Brown, Snoopy, Linus, Lucy … how can I ever forget them?”
Those were Charles M. Schulz’s parting words in the final daily “Peanuts” comic strip, which ran 18 years ago today.
They recalled a slightly less sentimental line from the strip’s debut, nearly 50 years earlier, in which a carefree Charlie Brown strolls by a pair of children.
“Good ol’ Charlie Brown,” one says. “How I hate him!”
That juxtaposition of earnestness and wry humor made “Peanuts” a pop-culture mainstay for half a century, appearing in 75 countries and 21 languages at its peak.
Mr. Schulz insisted on producing every aspect of the comic, making himself inseparable from his characters.
“I want it to be my words in everything I do,” he told The Times in 1967. “I’ve thought of it — hiring someone to help. Sometimes I think it would be nice. But then — what would be the point?”
When colon cancer forced Mr. Schulz to end the daily strip in 2000, at age 77, The Times invoked a dismal Charlie Brown, mourning the end of the baseball season: “There’s a dreariness in the air that depresses me.”
Mr. Schulz died a month later, but all 17,897 “Peanuts” strips were anthologized over the next two decades.
Dan Sanchez contributed reporting.
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