Elon Musk has initiated conversations about using blockchain technology at the new Department of Government Efficiency, according to people with knowledge of the discussions. It’s the latest sign of the Trump administration’s efforts to bolster the digital asset industry.Musk, who heads the DOGE effort, has mused to close allies about the idea of using a digital ledger as a way to squeeze costs out of the government, said one of the people, who asked for anonymity because the discussions haven’t...