Iran says it is clamping back down on the Strait of Hormuz, putting the ceasefire at risk. President Trump appeared at a rally at an Arizona megachurch. Businesses are preparing for Monday's launch of an online portal for tariff refunds.<br/><br/>See <a href="https://pcm.adswizz.com">pcm.adswizz.com</a> for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.<br/><br/><a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

In one Iowa city, public schools compete in the free market. Are students better off?

NPR's Up First is the news you need to start your day. The three biggest stories of the day, with reporting and analysis from NPR News — in 10 minutes. Available weekdays at 6:30 a.m. ET, with hosts Leila Fadel, Steve Inskeep, Michel Martin and A Martinez. Also available on Saturdays at 9 a.m. ET, with Ayesha Rascoe and Scott Simon. On Sundays, hear a longer exploration behind the headlines with Ayesha Rascoe on "The Sunday Story," available by 8 a.m. ET. Subscribe and listen, then support your local NPR station at donate.npr.org.Support NPR's reporting by subscribing to Up First+ and unlock sponsor-free listening. Learn more at plus.npr.org/upfirst