Pentagon Sending Combat Forces to Help Secure Border

The troop mobilization indicates that President Trump is breaking with recent presidents’ practice of limiting deployments along the U.S.-Mexico border mostly to small numbers of active-duty soldiers and reservists.

Oil Companies Wanted Trump to Lower Costs. Tariffs Are Raising Them.

The cost of steel pipe used to line oil and gas wells rose after President Trump said he would impose tariffs on steel and aluminum imports.

C.I.A. Expands Secret Drone Flights Over Mexico

The covert program, begun during the Biden administration and stepped up by President Trump, is hunting for the location of fentanyl labs.

G.M. Has Plans Ready for Trump’s Canada and Mexico Tariffs

General Motors, the largest producer of cars in Mexico, won’t provide details on how it would react if President Trump imposes 25 percent tariffs from the two countries.

Oil Companies Embrace Trump, but Not ‘Drill, Baby, Drill’

Oil and gas executives welcomed President Trump’s early moves on energy policy, but many said they did not plan to increase production unless prices rose significantly.

Border, Asylum, Citizenship: Trump Kicks Off Vast Immigration Changes

More is coming, but many directives will take time to be implemented or will face political, legal or practical obstacles.