President Donald Trump on Tuesday talked up a joint venture investing up to $500 billion for infrastructure tied to artificial intelligence by a new partnership formed by OpenAI, Oracle and SoftBank. The new entity, Stargate, will start building out data centers and the electricity generation needed for the further development of the fast-evolving AI in Texas, according to the White House. Joining Trump fresh off his inauguration at the White House were Masayoshi Son of SoftBank, Sam Altman of OpenAI and Larry Ellison of Oracle.