from The Conservative Treehouse:

David Sacks is a key advisor to Elon Musk and one of the principal aides to Musk during the purchase and subsequent takeover of Twitter by the billionaire entrepreneur.

There has been an ongoing debate about whether Elon Musk was aware of the U.S. government and intelligence community control over Twitter prior to the purchase; with many people saying there is no way that Musk could not know given the scale of the money involved, $42 billion and the due diligence that generally follows such transactions.