NPR News Now reports that the U.S. federal debt has surpassed $40 trillion amid ongoing deficits. President Trump downplays the Strait of Hormuz closure while facing primary losses for his endorsed candidates in Florida and Wyoming. The episode also covers concerns over IndyCar vibrations near D.C. museums, Colombia’s request for tariff relief after an earthquake, the memorial for Nolan Wells, and NASA’s abandoned mission to save the SWIFT telescope.