President Donald Trump has hosted tech executives at the White House, showcasing AI research and investments.

A mixed day of trading left the U.S. stock market split, as Wall Street’s momentum slowed after setting record highs in each of the last two days.

Oil prices leaped, and stocks slumped on worries that escalating violence following Israel’s attack on Iranian nuclear and military targets could damage the flow of crude around the world, along with the global economy.

U.S. stocks drifted higher following another encouraging update on inflation.

“To win in AI we need more money, more talent, stronger leadership,” Schmidt said Monday. It also calls for “wise restraints” on the use of AI tools such as facial recognition that can be used for mass surveillance. It’s still awaiting confirmation of a new director for the White House Office of Science and Technology Policy, which Biden has elevated to a Cabinet-level position. AdIt's been led by Schmidt, who was Google's CEO and later the executive chairman of its parent company Alphabet. AdThe commission asked Congress to make new laws requiring federal agencies to conduct human rights assessments of new AI systems used on Americans.

TikTok denies it is a national-security risk and is suing to stop the administration from the threatened ban. TikTok denies that it has shared user data with the Chinese government or that it would do so if asked. It competes with tech giants such as Microsoft and Amazon that provide cloud services as well as business-software specialists like Salesforce. The president said on Aug. 18 that Oracle was “a great company” that “could handle” buying TikTok. He declined to state his preference between Oracle and Microsoft as buyers.

Justin Sullivan/Getty Images(CNN) - Mark Hurd, CEO of Oracle and former CEO of Hewlett-Packard, two of Silicon Valley's most storied companies, has died. "Mark was my close and irreplaceable friend, and trusted colleague," Ellison said in a memo to Oracle employees that was posted on Mark Hurd's personal website. Hurd's Oracle career started in 2010, one month after he resigned as Hewlett-Packard's CEO over sexual harassment allegations. HP didn't make it easy for Hurd to make the jump: It sued Oracle in an attempt to stop Hurd from joining. He became HP's CEO in 2005, replacing ousted CEO Carly Fiorina.

Justin Sullivan/Getty Images(CNN) - Oracle has announced that one of its top executives will take a leave of absence for health related reasons. Mark Hurd said in a company statement on Wednesday that the leave was granted at his request. He serves alongside Safra Catz, who is also CEO. "Oracle has an extremely capable CEO in Safra Catz and an extraordinarily deep team of executives, many with long tenure at Oracle. The-CNN-Wire & 2019 Cable News Network, Inc., a Time Warner Company.