The former speaker, a prodigious fund-raiser and shrewd campaign strategist, seldom intervenes in primaries but has made an exception for a Kennedy before.

Drug syndicates have used .50-caliber ammunition, produced at a plant owned by the U.S. Army and then smuggled across the border, in attacks on Mexican civilians and police.

The video clip that President Trump posted in a late-night flurry of social media activity caused an unusually strong and public outcry from members of his own party.

Pakistan has made headway against the Islamic State and other militants, but a bloody suicide attack showed how fragile its progress has been.

Cold-weary New Yorkers will get hit by another blast of frigid weather. Here’s what to expect, and what the city is doing to protect the vulnerable.

From Prince’s giant symbol to Kendrick Lamar’s streetlamps, the set production designer Bruce Rodgers “makes the impossible possible.”

The president shows, once again, that he shouldn’t be anywhere near the Oval.

Federal prosecutors had a warrant to collect evidence from Ms. Good’s vehicle, but Trump administration leaders said to drop it. About a dozen prosecutors have departed, leaving the Minnesota U.S. attorney’s office in turmoil.

Iran is skilled at prolonging negotiations over its nuclear program, and seems to be hoping President Trump is out for a quick win, rather than a prolonged regional war.

From joining an F.B.I. search of an election center to allegedly suppressing a whistleblower complaint, Tulsi Gabbard, the director of national intelligence, is eroding the independence of our intelligence community, argues Times Opinion’s editor, Kathleen Kingsbury.

Behind the scenes at the Westminster Dog Show, the entrants were affectionate. Or at least they acted like it.

A warming Arctic can stretch the polar vortex, a high-altitude air ribbon, one says. The “wobble” can disrupt the jet stream, causing extreme cold in the East.

The president has escalated his language as his administration takes steps to involve itself more in election matters.

The 41-year-old American aims to complete her comeback by racing in the women’s Olympic downhill on Sunday despite rupturing her left A.C.L. a week ago.

Mr. Hegseth’s order appeared to target his alma mater, Harvard’s Kennedy School for public policy.

Nearly all of the work had stopped on Friday while negotiations continued in Washington and litigation played out in court.