NPR News Now covers President Trump’s threats against Oman amid stalled Iran ceasefire talks and the ongoing investigation into Mississippi teen Nolan Wells’ death. The episode reports on the rested prosecution in the Lindsay Clancy trial, the indefinite postponement of Luigi Mangione’s state murder trial, and record-high kindergarten vaccine exemptions. Additionally, it highlights historic low water levels at Lake Powell and Lake Mead, threatening power and water supplies for millions.