In his first few weeks, President Trump has frozen climate spending, shaken up staffing at agencies like the E.P.A. and set off a wave of legal challenges.

The court ruled that the Trump administration had a narrowly defined path to withhold some funds to the city that had been approved by Congress.

The executive, Jim Farley, said President Trump’s tariff and auto policies would raise costs and could force the automaker to cut jobs.

The Trump administration fired the Federal Emergency Management Agency’s chief financial officer and three others after Elon Musk misleadingly claimed the agency had used disaster relief funds for migrant services.

The Trump administration’s order to drop the charges against Mayor Eric Adams was the most pronounced example of the president using his power to determine the city’s future.

Trump is on the move.

Dozens of suits have been filed that seek to stop some of President Trump’s executive orders. Here’s a brief rundown.

I’ve seen U.S.A.I.D. operate around the world, and it’s not woke — it’s lifesaving.

With Canada, Mexico, China, Colombia and the Middle East, President Trump has wasted no time threatening to use American might to force recalcitrant countries to back down and do what he wants.

Lifesaving treatment and prevention programs for tuberculosis, malaria, H.I.V. and other diseases cannot access funds to continue work.

The pause affects billions of dollars and is delaying home repairs, factory construction and other projects, many in states that voted Republican.

President Trump is betting that Americans will not care if he upends institutions most have lost faith in.

Many of the frozen programs are aimed at alleviating disease and malnutrition, but even security programs with U.S. funding are shutting down.

The order that froze trillions of dollars of federal grants and loans was published without vetting by key officials in the White House.

Gov. Gavin Newsom told the president that California needed his help, and President Trump said he would work to “get something completed.”

While he has expressed support for North Carolina residents, the president has criticized California’s Democratic leaders and threatened to withhold federal aid from the state.

“I’d rather see the states take care of their own problems,” the president said. Federal emergency managers from both parties have made the same argument.

The new administration wants to slash aid for health, food and housing, but many of those programs now reach the struggling working class he is courting.

From national security to home insurance, the president has quickly changed America’s climate adaptation policies in important ways.

Automakers and even some Republicans may fight to preserve funds, and environmental activists will likely sue, but some experts said that some changes may not survive legal challenges.