Stock sales by top officials clustered before Trump's major tariff announcements, according to a USA TODAY analysis of transaction forms.

The National Highway Traffic Safety Administration (NHTSA) is reconsidering its new Corporate Average Fuel Economy (CAFE) ...

In a letter to NASA's interim chief, Sean Duffy, the group slammed "wasteful changes" that undermine NASA's core mission.

U.S. Transportation Secretary Sean Duffy has been lobbying lawmakers, so they vote to invest billions more in air traffic safety.

The U.S. Transportation Secretary is so pro-car that he risks making transportation less safe. Plus other news.

Current and former NASA employees have co-signed a declaration protesting changes at the agency that some say pose a grave ...

Several hundred current and former NASA employees, including at least four retired astronauts, backed a letter that opposes ...

It's not immediately clear how these actions might affect the broader trade war with Mexico and negotiations over tariffs.

President Donald Trump on Monday named Transportation Secretary Sean Duffy to also serve as interim NASA administrator. Janet ...

U .S. Transportation Secretary Sean P. Duffy has announced that the Maritime Administration (Marad) will distribute $8.75 ...