Facebook shares fell another 4.9% on Tuesday, on news that CEO Mark Zuckerberg has agreed to testify on Capitol Hill. The company has now lost a whopping $95 billion in market value since the Cambridge Analytica revelations.

In context: Facebook's recent loss is now greater than the total market value of such companies as Qualcomm ($85b), Starbucks ($81b), Costco ($80b), CVS ($66b) and FedEx ($63b).

Expand chart
Data: Money.net; Chart: Axios Visuals

Go deeper

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 9:30 p.m. ET: 30,918,269 — Total deaths: 959,059— Total recoveries: 21,152,312Map.
  2. U.S.: Total confirmed cases as of 9:30p.m. ET: 6,799,044 — Total deaths: 199,474 — Total recoveries: 2,590,671 — Total tests: 95,108,559Map.
  3. Politics: Testing czar on Trump's CDC contradictions: "Everybody is right" Ex-FDA chief: Career scientists won't be "easily cowed" by political vaccine pressure.
  4. Education: What we overlooked in the switch to remote learning.
  5. Health: The dwindling chances of eliminating COVID-19 — 7 states set single-day coronavirus case records last week.
  6. World: England sets £10,000 fine for breaking self-isolation rules — The countries painting their pandemic recoveries green.

Arrest over letter to Trump containing poison ricin

President Trump returning to the White House from Minnesota on Sept. 18. Photo: Win McNamee/Getty Images

A suspect was arrested for allegedly "sending a suspicious letter" after law enforcement agents intercepted an envelope addressed to President Trump containing the poison ricin, the FBI confirmed in an emailed statement to Axios Sunday.

Details: The suspect, a woman, was arrested while trying to enter New York from Canada, law enforcement forces said.

Trump campaign goes all in on Pennsylvania

Trump poster in Scranton, Pennsylvania. Photo: Robert Nickelsberg/Getty Images

The president's campaign is placing more importance on Pennsylvania amid growing concern that his chances of clinching Wisconsin are slipping, Trump campaign sources tell Axios.

Driving the news: Pennsylvania, which has 20 electoral votes, twice Wisconsin's number, actually has been trending higher in recent public and internal polling, a welcome development for the campaign.