Parties normally hold conventions every four years to nominate presidential candidates, but Republicans hope to hold one this year in the face of midterm headwinds.

Our national security correspondent David E. Sanger looks at President Trump’s trouble handling retaliatory attacks by Iran that have largely choked off the Strait of Hormuz.

To much ado, the secretary of state took the stand against David Rivera, a former congressman accused of secretly lobbying on behalf of the Venezuelan government.

The agency’s leader said the plans and timelines for the coming decade aimed to make Americans “start believing again” in the mission of space exploration.

Candidates in safe districts are under no pressure to moderate in order to win.

The Small Business Administration lent $378 billion to keep businesses afloat. Getting paid back is proving difficult.

A new satellite could transform how water is studied worldwide. But to help unlock its capabilities, scientists first needed to take critical measurements on a mountaintop.

Moscow may be challenging President Trump’s effort to choke Cuba’s economy. China also has suspected listening posts on the island.

The debate would have featured six candidates, all white. The inclusion of a low-polling mayor drew scrutiny in particular.

Intentionally targeting the country’s energy infrastructure could constitute a war crime under international law.

He mastered the world of the “Epstein Class” to build great museums. Now he’s confronting the cost.

Crown Prince Mohammed bin Salman sees a “historic opportunity” to remake the region, according to people briefed by U.S. officials on the conversations.

The Republican congressman from Kentucky is a die-hard libertarian who has centered his campaign on his willingness to buck the president. It has bought him the most expensive primary in the country.

A reassessment of damaged 3,500-year-old statuary adds to evidence that Queen Hatshepsut wasn’t the villain that scholars long took her to be.

Artificial intelligence could reshape work, but for now a low-hire, low-fire labor market is the main impediment for young people seeking employment.

Audience reactions are a staple of standup specials. But they’re a strange device when you take a closer look.