President Donald Trump has clarified that UFC chief executive Dana White will not become the next White House press secretary. Trump said on Sunday that his earlier suggestion was only a joke. The remarks came after a social media post about White and several UFC…

Artificial intelligence has attracted huge investments from businesses, but clear financial gains remain hard to find across much of corporate America. Outside the largest technology companies, there is little evidence that AI has raised revenue, improved profit margins or boosted productivity. The contrast between major…