This week’s rapid, unscheduled disassembly of Elon Musk’s bromance with Donald Trump has left officials at America’s space and security agencies reeling. One NASA official, wary of the agency’s dependence on SpaceX as the space exploration industry’s leading recipient of government contracts,

Sen. Elizabeth Warren said a "petty social media fight" between President Trump and billionaire Elon Musk should not jeopardize U.S. national security.

The extraordinarily bitter and public breakup could have significant consequences for both the world's richest man and its most powerful.