1. The Facebook antitrust cases filed this week relied on some of the same evidence that the House Antitrust Subcommittee collected & used to question Zuckerberg. Here are a few of the key exchanges with Zuckerberg from the 5+ hr hearing in July.

2. Both lawsuits cite messages stating Zuckerberg wanted to acquire firms to eliminate rivals. @RepJerryNadler confronted MZ about some of this evidence. "What did you mean when you said the purpose of the deal was to neutralize a potential competitor?"

3. When further probed on whether the deal was illegal, Zuckerberg said there was no guarantee Instagram would have succeeded absent Facebook's investments. But as noted in the House report, Instagram's internal documents tell a different story. https://judiciary.house.gov/uploadedfiles/competition_in_digital_markets.pdf

4. The complaints note FB enjoys a monopoly. FB contests that. But as @RepJoeNeguse noted to Zuckerberg, FB's documents show that as early as 2012 it captured 95% of all social media, while top execs described its acquisition strategy as a "land grab."

5. States' complaint notes FB's tactics signaled that if firms resisted selling, they'd face the "wrath of Mark." @PramilaJayapal asked Zuckerberg about the threats, noting one exec worried that MZ would go into "destroy mode" if Instagram didn't sell.

6. The complaints note FB deployed APIs to deprive rivals of key inputs. @RepValDemings quoted to Zuckerberg docs showing FB applied its policies anticompetitively. “Facebook weaponizes its policies, enforcing them selectively to undermine competitors.”

7. State note FB's monopoly let it misreport ad metrics. For years FB inflated video metrics, leading newsrooms to fire reporters. @JerryNadler asked Zuckerberg: "What do you have to say to the journalists who lost their jobs due to Facebook’s deception?"

8. Noting that FB has become "too big to care," @PramilaJayapal questioned Zuckerberg about comments that the "Stop Hate for Profit" boycott didn't affect FB.
“Are you so big that you don’t care how you’re impacted by a major boycott of 1100 advertisers?”

9. States' complaint notes that competition could encourage different business models. @davidcicilline noted to Zuckerberg that FB's current model incentivizes it to promote disinformation. "There's no competition forcing you to police your own platform."

10. Historically, congressional inquiries into monopoly power frequently spurred antitrust enforcers to pursue investigations & enforcement actions. By continuing to revive its tradition of corporate investigations, Congress can spur additional action by FTC & DOJ.