After all, there is “an enemy within.”

© Ethan Swope/Associated Press

After all, there is “an enemy within.”

MAGA is tearing itself apart over who really killed Charlie Kirk.

MAGA is tearing itself apart over who really killed Charlie Kirk.

© Loren Elliott for The New York Times

Responses to a news analysis about the possible effects of President Trump’s reprisals. Also: Cultural exchanges; roots of political violence; A.I.

Trump is known for saying a lot of things that he can’t or won’t back up. This time, the threats are real.

The writer Ta-Nehisi Coates joins Ezra Klein on the show to discuss how the left should think about the work of politics and persuasion in this moment.

Outrage incidents often drive history.

He’s got the whole world in his hands.

Since Charlie Kirk’s assassination, the Trump administration has been threatening to retaliate against the “radical left.” This response has echoes in American history — in the Red Scare.

If MAGA evangelicals cheer the president’s hatred, if they welcome it, if they adopt it and if they vote for it, then they are responsible for it.

Readers react to the memorial for the slain conservative activist Charlie Kirk. Also: Jimmy Kimmel and free speech; a loss of history at PBS.

State media and online trolls have seized on the assassination to score geopolitical points against the United States, according to a new report.