SoftBank Group Corp. is developing a data center-focused project in Ohio so massive that Chief Executive Officer Masayoshi Son said it would channel $500 billion into a single campus.“We are going to do the largest construction project in the country,” Commerce Secretary Howard Lutnick said Friday alongside Son and Energy Secretary Chris Wright at the site. While the US is witnessing a historic scramble by tech companies to build out artificial intelligence computing, the project’s scale described by Son an ...