The Daily The New York Times

Ukraine and Russia are enormous producers of wheat, corn, barley, sunflower oil and fertilizer. One study calculated that the two countries accounted for 12 percent of the world’s calories.

With Ukraine under attack and Russia hit with strict sanctions, a huge supply of food is suddenly trapped — with Africa and the Middle East particularly imperiled.

Guest: Jack Nicas, the Brazil bureau chief for The New York Times.

After months of investigation by a congressional committee, a federal judge has found that President Donald J. Trump and his allies most likely engaged in illegal activity in the wake of the 2020 election.

How did the committee achieve that ruling?

Guest: Luke Broadwater, a congressional reporter for The New York Times.

Exploring the personal experiences of Sara Mardini and Seán Binder, two volunteers who were arrested in February 2018 after helping migrants cross safely into Lesbos, Greece, the journalist Alex W. Palmer outlines the complex situation aid workers in Europe find themselves in: increasingly demonized by local authorities while also facing pressure from different ends of the international political spectrum.

Palmer traces the origins of the problem, explaining how, in the early days of the migrant crisis, the grass-roots response embodied the broadly held values of E.U. citizens: to be a place of refuge and compassion, to create a new future from the ashes of two world wars and to set an example based on morality rather than power.

But, as Palmer discovers, this idea was never unanimous, and it was only a matter of time before this compassion and idealism was eclipsed by anger and resentment. Many rejected the idea of newcomers entirely. Terrorist attacks and acts of criminality committed by asylum seekers further worsened collective sentiments and heightened public unease about the challenges of integration. The topic became a pawn for far-right media outlets and politicians, who helped stoke the growing anti-immigrant temper, portraying Europe as on the brink of being overrun by foreign hordes — and aid workers as part of the problem.

A highly politicized issue, the debate surrounding the migrant crisis continues to rage. As volunteers are targeted, what’s next for migrant aid in Europe?

This episode details graphic scenes.

Russia has mounted a brutal siege around the port city of Mariupol for more than a month, framing it as the key to a war of liberation. In reality, it’s a campaign against a city that is critical to Russia’s strategy — it would help open an important supply route and serve as a symbol of victory.

What is happening inside Mariupol, and what does the fighting mean for the future of Russia’s war on Ukraine?

Guest: Valerie Hopkins, a correspondent for The New York Times, currently based in Ukraine.

In the past, Republicans have been able to secure what some see as an unfair political advantage by gerrymandering political districts.

But after the recent redrawing of zones, the congressional map across the U.S. is perhaps more evenly split than at any time in the past 50 years.

What happened?

Guest: Nate Cohn, a domestic correspondent for The Upshot at The New York Times.

A series of text messages released in the past week show how Ginni Thomas, wife of Justice Clarence Thomas of the Supreme Court, urged White House officials to push to overturn the result of the 2020 election.

There has never been a spouse of a sitting justice who has been as overt a political activist as Ms. Thomas — and that presents a real conundrum for the court.

Guest: Jo Becker, an investigative reporter for The New York Times.