AMNA NAWAZ: In the day's other headlines: President Biden spent much of the afternoon in a Mississippi Delta town leveled by a tornado last Friday.

At least 13 people died in Rolling Fork, and hundreds of homes and businesses were destroyed or damaged.

The president and the first lady met today with residents and first responders.

Mr. Biden promised that federal teams won't leave until the area can recover.

JOE BIDEN, President of the United States: This community is going to be rebuilt and rebuilt and built back better than it was before.

The resilience to this community has been remarkable.

And I just want you to know, as you fight through this, you're not alone.

AMNA NAWAZ: The president has already approved a disaster declaration for the stricken area.

It authorizes funds for temporary housing, repairs and loans.

The U.S. Justice Department filed suit today against Norfolk Southern Railroad over a February train derailment in East Palestine Ohio.

The suit seeks fines for water pollution and a judgment that the company pays all costs.

The derailment left railcars strewn about and on fire.Chemicals and firefighting foam spilled into nearby creeks and rivers.

The city of Minneapolis has agreed to restructure its policing nearly three years after an officer killed George Floyd.

The legally binding pact limits the use of force, chemical sprays and Tasers, among other things.

A state investigation has found longstanding racial bias among the city's police.

But the mayor said today he hopes that begins to change.

JACOB FREY (D), Mayor of Minneapolis, Minnesota: So I think it's clear that the murder of George Floyd was the final straw that led to this investigation.

But this investigation, as has been stated repeatedly, is about a pattern practice over more than a decade.

And that's why this work of embedding that culture change is so essential.

AMNA NAWAZ: The Minneapolis Police Department remains under a separate federal investigation.

Pope Francis is now expected to be discharged tomorrow from the Rome hospital where he's been treated for bronchitis.

The Vatican said today that the pontiff will also be in St. Peter's Square for Palm Sunday mass.

Francis is 86 years old.

He was hospitalized on Wednesday with breathing problems.

And Ukraine today marked one year since the liberation of Bucha, the town near Kyiv where hundreds of bodies and mass graves were found.

Today, President Volodymyr Zelenskyy honored those killed during Bucha's month-long occupation.

And with other European leaders joining him, he called out Moscow.

VOLODYMYR ZELENSKYY, Ukrainian President (through translator): On the streets of Bucha, the world has seen Russian evil, the evil unmasked.

For more than 400 days, Ukrainian people completely focused on resisting a genocidal full-scale aggression of Russia.

Ukraine is being helped by our friends, and they are here today.

And we are grateful.

AMNA NAWAZ: Also today, the president of neighboring Belarus, Alexander Lukashenko, said his country may host long-range Russian nuclear weapons carried on missiles.

China sent nine warplanes across the median line in the Taiwan Strait today, as Taiwanese President Tsai Ing-wen was in New York.

Officials in Taipei said the Chinese conducted patrols along the line, which serves as a maritime border between the island and the mainland.

Beijing had warned Tsai not to meet with Kevin McCarthy, the U.S. House speaker, when she stops in Los Angeles next week.

The latest look at Social Security and Medicare concludes they will run short of funds within 10 years.

Program trustees projected today that Social Security won't be able to cover full benefits by 2033.

That is one year sooner than the last estimate.

Medicare will run short of cash to pay for hospital visits and nursing homes by 2031.

That's actually three years later than the previous estimate.

And, on Wall Street today, stocks rallied again to close out a big month.

The Dow Jones industrial average gained 415 points to close at 33274.

The Nasdaq rose 208 points.

The S&P 500 was up 58.

For all of March, the Dow gained 2 percent, the Nasdaq jumped more than 6.5 percent, and the S&P added 3.5 percent.

Still to come on the "NewsHour": David Brooks and Karen Tumulty weigh in on the indictment of Donald Trump; Annie Lennox discusses her long career in music and her activism; South Carolina remains the heavy favorite ahead of the women's Final Four; plus much more.