While many of Mr. Musk’s posts, particularly those on grooming gangs, originated in the ecosystem of far-right bloggers and activists, they are also tempting to mainstream politicians in search of a cudgel to use against their opponents. And they appeal to editors and broadcasters looking for a good story. “The British press and the broadcasters, […]

It was an abrupt turnabout, even for the easy-come, easy-go nature of alliances in President-elect Donald J. Trump’s political orbit. For weeks, Elon Musk, Mr. Trump’s billionaire backer, had wrapped his arms around the British populist politician, Nigel Farage, promoting his insurgent, anti-immigrant party, Reform U.K., as the answer to Britain’s problems. But on Sunday, […]