Jonathan left the Department of Justice after President Trump was elected, but he was the architect of the major antitrust cases that Google just lost, and which the Trump administration continues to pursue.

The outcome of the trial could fundamentally reshape the internet by unseating Google as the go-to portal for information online.

In the latest phase of the major antitrust trial that began on Monday, government lawyer David Dahlquist argued that Google has built a system where its control of search helps improve its AI products, which then send more users back to Google search, creating a cycle that keeps competitors locked out of both markets.