Good afternoon. Today's PM is 497 words.
Illustration: Aïda Amer/Axios
MacKenzie Bezos is part of the latest tranche of billionaires to sign on to the Giving Pledge, which commits participants to giving away at least half of their fortunes.
Why it matters: Bezos is estimated to be worth more than $35 billion after her divorce from Amazon founder Jeff Bezos. Her move opens her up to criticism over how the mega-wealthy use philanthropy, Axios' David McCabe reports.
The big picture: Bezos and the other billionaires who’ve taken the pledge are liable to charges that they are using philanthropy to influence society without doing anything to address the underlying causes of inequality — or paying their fair share of taxes.
The bottom line, via Axios' Scott Rosenberg: There's a growing chorus of critics pointing out that we're allowing billionaires to choose how to spend their fortunes without paying any taxes on them, when we could be taxing them and devoting a portion to publicly agreed upon needs.
Serena Williams takes off her jacket with French text reading "Champion," "Queen," "Goddess," and "Mother" after warming up prior to her first round match of the French Open.
"Navy Pilots Report Unexplained Flying Objects ... [They told] their superiors that the objects had no visible engine or infrared exhaust plumes, but that they could reach 30,000 feet and hypersonic speeds," write the N.Y. Times' Helene Cooper, Ralph Blumenthal and Leslie Kean.