Mark Zuckerberg gives the commencement address at Harvard. Photo: Steven Senne / AP

The Washington Post's Matea Gold and Elizabeth Dwoskin illustrate how Facebook's place in the federal government's Russia probe has shined a light on the secretive nature behind political advertising on the platform.

What's next: "Democratic Sens. Amy Klobuchar (Minn.) and Mark R. Warner (Va.) plan to introduce a bill in the coming weeks that would require sites with more than 1 million users to maintain a public file containing a copy of political ads and information about who they are aimed at."

Why it matters: "The situation has the potential to affect a key profit center for Facebook. The same proprietary technology that has made Facebook the go-to advertising platform for political campaigns also enabled Russian operatives to target U.S. voters with inflammatory ads."

Data point: "By Election Day, Trump's campaign had spent roughly $70 million on Facebook ... nearly all in the last four months of the election."

Be smart:

  • You'll see talk online about Facebook "embeds" to the Trump campaign, based on a "60 Minutes" interview with Trump digital director Brad Parscale. The Facebook employees, who had been screened as Republicans, showed up several times a week at Parscale's office in San Antonio.
  • "60 Minutes," acting shocked, did a poor job of explaining that these are basically salespeople — provided by the platforms to encourage ad buying.
  • The same system was used in the 2012 campaign.

Go deeper

Updated 2 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 1 a.m. ET: 20,284,882 — Total deaths: 741,126— Total recoveries: 12,585,473Map.
  2. U.S.: Total confirmed cases as of 1 a.m. ET: 5,141,208 — Total deaths: 164,537 — Total recoveries: 1,714,960 — Total tests: 63,252,257Map.
  3. States: Georgia reports 137 coronavirus deaths, setting new daily record Florida reports another daily record for deaths.
  4. Health care: Trump administration buys 100 million doses of Moderna's coronavirus vaccine.
  5. Business: Moderna reveals it may not hold patent rights for vaccine.
  6. Sports: Big Ten scraps fall football season.
  7. World: Anthony Fauci "seriously" doubts Russia's coronavirus vaccine is safe

Ilhan Omar wins Minnesota primary

Photo: Stephen Maturen/Getty Images

Rep. Ilhan Omar (D-Minn.) won the Democratic primary against lawyer Antone Melton-Meaux on Tuesday evening, AP reports.

Why it matters: The race is one that's played out across the U.S. as progressives continue to sweep party nominations. Omar's win officially means all four progressive members of "The Squad" have won their primary elections.

Updated 3 hours ago - Politics & Policy

25 face felony charges after downtown Chicago hit by looters

Police officers inspect a damaged Best Buy in Chicago that was looted and vandalized. Photo: Scott Olson/Getty Images

Local police officers are seeking felony charges in 25 cases following the arrest of 100 people in the wake of widespread looting and property damage in Chicago on Monday, per the Washington Post.

Driving the news: Law enforcement said the event involving hundreds of people was a coordinated response after an officer shot a suspect Sunday evening, according to CBS Chicago.