[MarketWatch] SoftBank Group Corp. Chairman and Chief Executive Masayoshi Son said Tuesday he would invest $50 billion in the U.S. and create 50,000 new jobs, following a 45-minute private meeting with President elect Donald Trump.The Japanese billionaire, whose conglomerate controls Sprint Corp. S, +0.73% , announced his investment plans in the lobby of Trump Tower, though he didn't provide details. Trump took credit for the investment, saying his November victory spurred SoftBank's decision.