Good morning! Today’s edition is 665 words, a 3-minute read.

What’s on tap: 

• Google AI releases

• Aging protein

• Professional ROI

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*Editor’s note: I’ll have limited internet access until May 26, so The Neutral will shift to a shortened 5-day format, with weekday editions resembling Saturday’s edition. Regular 6-day publishing will resume when I’m back. — Adam

Today’s Big Story

Primary Night Roundup

• Former Navy SEAL Ed Gallrein defeated Rep. Thomas Massie in Kentucky's Republican primary Tuesday, handing Trump a high-profile victory over one of his most persistent House critics. The race cost $32.6 million, the most expensive congressional primary ever. Massie conceded but hinted at a 2028 presidential run.

• Trump targeted Massie for pushing to release Epstein investigation files, voting against the One Big Beautiful Bill, and opposing the Iran war. Gallrein, backed by roughly $19 million in outside spending, won with 55% of the vote to Massie's 45%.

• Alabama set up a gubernatorial rematch. Trump-backed Sen. Tommy Tuberville will face former Sen. Doug Jones, whom he defeated in 2020. In Georgia, Trump-endorsed Burt Jones is headed for a runoff after falling short of a majority.

• Rep. Andy Barr won the Republican primary for Mitch McConnell's Kentucky Senate seat, defeating former state Attorney General Daniel Cameron. He will face Democratic nominee Charles Booker in November.

Today’s Quick Hits

• A new study from UCL and Cambridge suggests T. rex and other meat-eating dinosaurs evolved tiny arms because their heads took over as the primary weapon. Researchers analyzed 82 species and found that short forelimbs were closely linked to large, powerful skulls, not simply larger body size. As prey grew bigger, jaws became more effective than claws, making the arms increasingly unnecessary. (More)

• Google announced a wave of new AI tools at its annual developers conference on Tuesday, led by Gemini Spark, an AI agent that works in the background around the clock to handle tasks like sorting emails and summarizing meetings. The company also unveiled Gemini 3.5, its latest model family, now rolling out to users, and showed off AI-powered smart glasses made with Samsung, Warby Parker, and Gentle Monster due later this year. (More)

• Chinese President Xi Jinping welcomed Vladimir Putin to Beijing on Wednesday for a state visit, following last week's summit with Donald Trump in the same city. Putin called Russia a "reliable energy supplier" amid the Iran war and invited Xi to visit Moscow next year. Xi said a Middle East ceasefire was "of utmost urgency." Trade and investment are expected to top the agenda as Russia's economy strains under the cost of the Ukraine war. (More)

• Researchers at the University at Buffalo found that boosting levels of a protein called tristetraprolin in elderly mice reduced frailty, improved grip strength and bone health, and produced a more youthful immune profile. The protein helps control chronic low-level inflammation that builds up with age. Human treatments remain far off, but researchers say the findings point toward a potential new approach to slowing age-related decline. (More)

• A bipartisan House bill introduced Sunday would charge electric vehicle owners an annual $130 registration fee to help fund road and bridge infrastructure, which is currently paid for through the federal gas tax. The bill's sponsors say EV owners should pay their share for road use. Critics say the fee is higher than what the average gas taxpayer contributes and amounts to a penalty on EV owners. (More)

• Arsenal won the Premier League title for the first time in 22 years on Tuesday after Manchester City drew with Bournemouth, ending a three-year run of near misses for manager Mikel Arteta. It is Arsenal's 14th English title and first since the "Invincibles" season of 2003-04. The club also faces Paris Saint-Germain in the Champions League final on May 30. (More)

Extra Credit

Southwest Airlines bans humanoid robots.

Former lab rats find new homes through Ratapalooza.

The first woman to represent the US in a world welding competition.

College professions with the best return on investment.