But, they warn, the government will face significant challenges in proving its case in a court system that progressive antitrust enforcers and many lawmakers believe has taken on a myopic view of the scope of antitrust law, especially when it comes to digital markets.

“If they prove the violations they allege, they’re going to get a remedy that’s going to shake up the market,” said Doug Melamed, a scholar-in-residence at Stanford Law School who served at the Antitrust Division, including as acting assistant attorney general, from 1996-2001 during the landmark case against Microsoft. “But it’s not obvious they’re going to win this case.”

DOJ took a gamble with this case. But if it wins, the rewards could match the risk.

“In terms of the potential impact of the remedy, this could be a bigger case than Microsoft,” said Melamed.