In September, President Trump’s re-election campaign released an ad that included an incorrect statement about Mr. Biden’s dealings with Ukraine. The campaign posted the ad on Facebook and the president’s Twitter account. Mr. Biden’s campaign publicized letters that it had written to Facebook, Twitter, YouTube and Fox News, asking the companies to ban the ad. In mid-November, the Biden campaign released a website called Just the Facts, Folks. Facebook does not remove false news, though it does label some stories as false through a partnership with several fact-checking organizations.

Source: New York Times December 15, 2019 21:45 UTC