The parties involved have either declined to comment or haven't responded.

There's no guarantee the DOJ or state AGs will find enough common ground to work together. As the lawsuit to block T-Mobile's merger with Sprint has illustrated, many states have been more aggressive about pursuing antitrust cases than the current federal administration. There's a chance the two might disagree on the extent to which they'll pursue Google, or whether they'll pursue Google at all.

If there is a unified front, though, Google won't be happy. The existing probes already raise the possibility of new restrictions on Google's search engine, and potentially Android. A coordinated effort would make it that much harder for the company to fight regulation and preserve its dominance, even if there isn't a change of leadership in the months ahead.