The Senate Judiciary Committee hearing on adtech is beginning. https://www.judiciary.senate.gov/meetings/stacking-the-tech-has-google-harmed-competition-in-online-advertising

Google President of Global Partnerships and Corporate Donald Harrison denies that Google has 90%+ of the search market.

Now @HawleyMO is continuing with @RepJayapal's line of questioning on the adtech stock market-like qualities and Google's conflicts of interest. He asks, "Do publishers know what Google makes?" Google's Donald Harrison is playing dumb. This is brutal. https://www.judiciary.senate.gov/meetings/stacking-the-tech-has-google-harmed-competition-in-online-advertising

Klobuchar: "Do you think you'd have 90% of the publishing ad server market if you hadn't bought DoubleClick?"

Google's policy heads are apparently all trained by Unfrozen Caveman Lawyer.

Blumenthal is asking if Google grabs newspaper data and then targets readers over those newspapers elsewhere with ads, undercutting them using their own data. Google's Donald Harrison responds by saying the sole goal is to help publishers make money. "There is no conflict there."

Google's Donald Harrison has actually angered Senator Mike Lee by contesting whether it is a "large technology company." There are three other companies that are "substantially larger" or something.

Now Google's Donald Harrison is denying that Google has a dominant share in searching for information. Ted Cruz is annoyed. How is Google making me agree with Cruz?

Oh wow @HawleyMO is now asking about predatory discounts for Google advertising inventory based on scale, which pushes ad firms to buy more and more from Google. That then induces publishers to sell on Google exchanges. This is exclusionary conduct or tying. Standard Oil-like.

Google's Donald Harrison doesn't see the harm of giving rebates based on size, which pushes out competitors. John D. Rockefeller and the Pennsylvania Railroad didn't see the harm either.

Once again, an antitrust hearing on big tech is bipartisan, substantive, and has nothing to do with Trump. Every Senator here, GOP or Dem, is focused on Google's monopoly power.

Now Senator Marsha Blackburn is pointing out Google told Congress in 2007 it wouldn't use DoubleClick data, then in 2016 reversed itself. Donald Harrison said that Google got the consent of all of its users to do that. "Users own their data."