The government is releasing photos and videos to promote President Trump’s immigration agenda, including footage of troops at the border and close-up shots of shackled immigrants.

A pandemic is not inevitable, scientists say. But the outbreak has passed worrisome milestones in recent weeks, including cattle that may have been reinfected.

During his campaign, Donald J. Trump vowed to end the Ukraine war by Day 1 of his new term as president. Jeanna Smialek, the Brussels bureau chief for The New York Times, looks at how he described the war in an appearance at the World Economic Forum since taking office.

President Trump pardoned men who violently attacked police officers on Jan. 6 along with nearly 1,600 other people who had been charged in connection with the riot. But his grant of clemency did not erase the video evidence of their crimes.

A Justice Department investigation into whether antidoping authorities covered up positive tests for elite Chinese swimmers set off a power play to kill the inquiry.