https://techcrunch.com/2020/10/26/twitter-notification-voting-by-mail-delayed-election-results/

Starting today, Twitter users in the U.S. will see two large notices at the top of their feeds that aim to “preemptively debunk” misinformation related to voting. The striking messages are designed to push back against the deluge of false claims about the 2020 election.

One notice warns users that they “might encounter misleading information” about mail-in voting while the other attempts to head off online election-related chaos by cautioning that the results of the U.S. election may be delayed.