MINNEAPOLIS & SAN FRANCISCO--(BUSINESS WIRE)--U.S. Bank, lead bank of U.S. Bancorp (NYSE: USB), has made an investment in and joined clearXchange, the largest bank-focused digital payments network in the United States. With the addition of U.S. Bank, the clearXchange network now includes 5 of the largest banks in the United States, along with multiple regional financial institutions, who together serve over 100 million online banking and 50 million mobile banking customers. U.S. Bank, which has