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Illustration: Sarah Grillo/Axios

An ad by Sen. Elizabeth Warren's campaign that says Facebook has endorsed President Trump (before admitting the claim is a lie) is having its intended effect: raising tough questions about Facebook's policy of allowing politicians to make any claims they want.

Why it matters: Facebook has spent much of the last 2 years talking about its efforts to protect elections. But while Facebook is cracking down on foreign interference and deliberate voter suppression, it is giving political candidates carte blanche to distort and deceive.

Driving the news:

  • Facebook has green-lighted an ad from President Trump that makes false claims about Joe Biden. (So have Twitter and YouTube.)
  • Elizabeth Warren posted an advertisement saying falsely that Facebook and Mark Zuckerberg had endorsed Donald Trump. In the post, she quickly acknowledges that's not actually true, but says that by allowing falsehoods, Zuckerberg has "given Donald Trump free rein to lie on his platform — and then to pay Facebook gobs of money."

Facebook responded on Twitter Saturday that broadcast stations across the country aired this ad nearly 1,000 times, as required by law. "FCC doesn't want broadcast companies censoring candidates' speech," Facebook said. "We agree it's better to let voters — not companies — decide."

Yes, but: The broadcast networks operate under unique rules because they are using public airwaves. Businesses operating in nearly every other type of media can (and often do) set their own rules, including cable, internet and outdoor media.

History lesson: Every company or person who has ever been in charge of a platform, a message board, or a comments area knows that trolls are going to take any rule about acceptable content and stress-test it from a zillion directions.

  • The problem here is what to do when those pushing the boundaries aren't everyday trolls, but rather the president of the United States and one of his leading challengers. 

Facebook, for its part, has invested a lot in creating a more systematic approach to evaluating content, clarifying its community standards, bringing in third-party fact checkers, and setting up an independent "Supreme Court" appeals board to provide a final say. (Facebook says it's focusing the fact checkers' limited time on memes and hoaxes, not politicians' words.)

  • Facebook argues it should take a nearly completely hands-off approach to what politicians say in their paid advertisements, and it's not alone — many critics, as well, don't want to see the social network set the boundaries of political speech. (See below for just what the social network is and isn't allowing.)

My thought bubble: As political ads inevitably keep testing Facebook's boundaries, the company's best solution may be to stop taking them altogether (as some transit agencies have, for example) — trading a modest revenue loss for the opportunity not to be blamed for swinging a second election in a row.

Go deeper: Zuckerberg talks Warren's "existential" breakup threat in leaked audio

Go deeper

Pentagon approves request for 100 National Guard troops for "Justice for J6" rally

Security fencing has been reinstalled around the Capitol. Photo: Drew Angerer/Getty Images

Defense Secretary Lloyd Austin has approved a request from Capitol Police to provide 100 D.C. National Guard troops in case law enforcement requires additional support at Saturday's "Justice for J6" rally at the Capitol.

Why it matters: Security preparations have ramped up ahead of the pro-Trump demonstration, where hundreds of protesters sympathetic to the Jan. 6 Capitol attack are expected to gather.

Biden threatens new sanctions against Ethiopian officials over Tigray conflict

Photo: Al Drago/Getty Images

President Biden on Friday signed an executive order allowing the Treasury and State Departments to impose sanctions against Ethiopian officials "responsible for, or complicit in, prolonging the conflict" in the Tigray region.

Driving the news: Hundreds of thousands of people are facing famine conditions in Tigray, but less than 10 percent of the needed humanitarian supplies has reached the region over the last month "due to the obstruction of aid access" by the Ethiopian government, according to Biden administration officials.

Top general: Calls to China were "perfectly within the duties" of job

Gen. Mark Milley. Photo: Andrew Harrer/Bloomberg via Getty Images

Joint Chiefs Chairman Mark Milley told the Associated Press on Friday that calls with his Chinese counterpart during the final months of Donald Trump's presidency were "perfectly within the duties and responsibilities" of his job.

Why it matters: In his first public comments on the calls that have prompted critics to question whether the general went too far, Milley maintained that such conversations are "routine," per AP.