The U.S. has the most railroad tracks of any country, but we're not known for our passenger trains. A look at America's rail system and the trouble with passenger trains.

Nearly a year into his second term, President Trump is facing growing skepticism as Americans feel persistent cost-of-living pressures despite his efforts to defend the strength of the economy.

David Sacks is the Trump administration's top advisor on tech and crypto policy. In recent weeks, he's faced questions about conflicts of interest and criticism over his drive to undo state AI laws.