MAUNA LOA, Hawaii — Early one morning this month, 864 Army paratroopers bundled into C-17 transport planes at a base in Alaska and took off for a Great Power War exercise between three volcanic mountains on the Big Island.

WASHINGTON — On Jan. 6, 2021, President Donald Trump stood onstage at the Ellipse, a park just south of the White House, and encouraged thousands of his supporters to fight to overturn an election he falsely claimed had been stolen.

WASHINGTON — The window is closing for nations to reduce enough of the pollution that is heating the planet to avoid the most dangerous levels of climate change, according to scientists across the world. And the outcome of next week’s presidential election could determine whether the United States and other countries meet that challenge.

Donald Trump and his allies are full of bravado over his chances of victory in the closing days of the 2024 campaign. But there are signs, publicly and privately, that the former president and his team are worried that their opponents’ descriptions of him as a racist and a fascist may be breaking through to segments of voters.

ATLANTA — Fewer than 12,000 votes in Georgia were the difference between Joe Biden’s 2020 victory in the state and Donald Trump’s defeat. Apart from Arizona, there was no thinner margin in the nation.

A campaign marked by Donald Trump’s apocalyptic extremes has turned even darker in its final days.

Paging through intelligence reports just weeks after she was sworn in as vice president, Kamala Harris was struck by the way two female foreign leaders were described. The reports used adjectives that, in her view, were rarely used to describe male leaders.

Chinese hackers targeted data from phones used by former President Donald Trump and his running mate, Sen. JD Vance of Ohio, as part of what appears to be a wide-ranging intelligence-collection effort, people familiar with the matter said on Friday.

WASHINGTON — With less than two weeks until Election Day, law enforcement officials are confronting a rising wave of threats to election workers and political activists in a presidential contest hurtling toward a bitterly contentious coda and a potentially unsettled aftermath.

HAZELWOOD, Mo. — With the push of a red button, a milky-colored liquid sprayed onto a load of corn seed at a warehouse in central Missouri. It was a hint of a revolution underway in U.S. agriculture, driven by a desire to combat climate change while still feeding and fueling the world.