You could say many things to describe a week in which President Trump got in a snit about buying Greenland, called the Federal Reserve chairman an “enemy,” reversed his position repeatedly on China, and rebuffed European allies by saying he’s ready to invite Russia to a global summit at one of his Florida golf resorts. But “exhausting” would be the ...

What a difference a weekend makes. Emmanuel Macron emerged as big beneficiary from the G7 summit, a junket that has come under increasing criticism as the shrinking group of leaders struggle to forge a consensus in the era of Donald Trump. Last week, US president’s tone on Twitter was aggressively anti-European Union — but by Monday he was full of ...

Silicon Valley has a split personality about “brilliant jerks.” These are the kind of abrasive, boundary-pushing executives whom the industry (and often the media) lionizes — until they push boundaries too far and are kicked out of the tech Garden of Eden. Consider Anthony Levandowski, a former executive in Alphabet Inc.’s self-driving vehicle project whom the US government charged this ...