A U.S. scientist’s tea recipe has Brits aghast. Salt? Warm milk? The horror! Some 250 years after Americans ruined a lot of British tea in Boston Harbor, a U.S. chemist’s salty tip for the perfect cup has prompted an intervention from the U.S. Embassy in London. Read more on NPR

Delegate tracker: Trump leads GOP presidential candidates on road to nomination How many delegates does each candidate have in the 2024 Republican presidential nomination race? NPR keeps track. Read more on NPR

Up First briefing: Boeing faces production caps, Haley bets on South Carolina The FAA laid out a plan for Boeing 737 Max 9 jets to resume flying, but also hit the company with production caps. Former South Carolina Gov. Nikki Haley pins her presidential hopes on her home state. Read more on NPR

Young voters focus more on issues than candidates in 2024 presidential election Voters under 30 tend to lean left of center overall and could make a major difference for Democratic candidates. Will they turn out in strong enough numbers to help President Biden win reelection? Read more on NPR

Housing is now unaffordable for a record half of all U.S. renters, study finds A new Harvard analysis finds people across income levels got squeezed by rent hikes during the pandemic. The market has lost millions of low-rent places, and new construction is mostly high-end. Read more on NPR

The colonoscopies were free but the ‘surgical trays’ came with $600 price tags Health providers may bill however they choose, including in ways that could leave patients with unexpected bills for “free” care. Preventive care left an Illinois couple with “surgical tray” charges. Read more on NPR