Microsoft CEO Satya Nadella this week called the company’s unsuccessful efforts to acquire TikTok’s U.S. operations last year “the strangest thing” he’s ever worked on. But there’s a bigger takeaway that transcends the weirdness of the TikTok talks and the quirks of the Trump administration. Brad Smith, Microsoft’s president and newly named vice chair, laughed when he read that — agreeing with the sentiment, even if he has seen stranger things in his two decades representing the tech giant in its dealings with companies and governments around the world. In the new paperback edition of his book, Tools & Weapons,...