President Donald Trump says he agreed to halt a planned show of federal force in San Francisco after appeals from tech executives and the mayor. Trump had been threatening to send the National Guard into San Francisco to quell crime. San Francisco officials said such force wasn't needed because crime is on the decline. Trump says the billionaire CEOs of Nvidia and Salesforce urged him to let San Francisco continue its own efforts to reduce crime. Trump also credited a conversation with Democratic Mayor Daniel Lurie. The first-term mayor has tried to avoid confrontation with Trump.