Democrats have worried that Trump would declare a premature victory via social media.

Twitter and Facebook both labeled a post President Trump shared at the end of Election Day in which he baselessly said the election is being stolen from him. Twitter took more aggressive action by warning users that the post is potentially misleading and slowing its reach; Facebook posted a label saying that ballots could take days or weeks to count.
In fact, its standard process in the United States for votes to be counted well after election night, and thats even more anticipated this year given the record volume of mail-in ballots due to people staying at home during the Covid-19 pandemic.
Democrats had been worried about this very scenario that Trump would declare a premature victory via social media for months leading up to the election, and had been pressing social media companies for more details on how they would respond. Trumps posts come ahead of a speech hes expected to give on broadcast television, in which major networks have said they would fact-check false claims by Trump in near real time.
Just as Democratic presidential candidate Joe Biden was finishing his televised speech to say that he thinks hes on track to win the election, Trump posted on his Facebook and Twitter accounts claims that We are up BIG, but they are trying to STEAL the Election. We will never let them do it. Votes cannot be cast after the Poles [sic] are closed!
A few minutes after Trump posted this, it appears that his account deleted and reposted the tweet after fixing a spelling error; his first tweet had spelled it as Poles. Regardless, Twitter labeled the spell-checked version of Trumps tweet with a warning label for violating its policies against civic integrity. Twitters label covered the content of Trumps tweet so that you can only see the actual post if you click in to a note that says the content in the tweet is disputed and might be misleading about an election or other civic process. Twitter has seemingly also prevented users from replying to, liking, or sharing the tweet without comment.
Shortly after Twitter moderated Trumps post, Facebook also labeled Trumps identical post on Facebook with a less prominent warning label stating that Final results may be different from initial vote counts, as ballot counting will continue for days or weeks, and a link to voting information. Unlike Twitter, Facebook has not limited peoples ability to reply to or share the post.
Once again, it seems that Twitter took the lead over Facebook in more decisively moderating Trumps comments. But as Trump continues to comment on the results of an incomplete election in which key battleground states are expected to spend the next few days or more finalizing their counts, both companies will likely keep having to deal with these kinds of unproven claims about the results of the election.
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