Prior to officially becoming president, Donald Trump held a lengthy conversation with OpenAI CEO Sam Altman to discuss the potential of artificial intelligence and the need to develop the technology in the U.S., CNBC has learned.During the chat Friday, Trump was particularly animated about building AI in the U.S. instead of having it developed in China, and what that could mean for job creation and confidence in the U.S. during his administration, according to a person familiar with the matter w...