Mark Zuckerberg has to be wishing the pokes he’s received this week were just from Facebook friends seeking his attention, not governments on both sides of the Atlantic.

The Harvard dropout who founded the Menlo Park, Calif.-based social media giant and is now its chief executive officer is grappling with growing pressure from Washington, D.C., and London to testify publicly on how British consulting firm Cambridge Analytica – a consultant on 2016 U.S. presidential campaigns including Donald Trump’s – obtained data on millions of its customers.