https://www.cnet.com/news/facebook-and-twitter-combat-voter-suppression-on-election-day/

The world's largest social network also said it took action against inaccurate posts and memes that told Republicans and Democrats to vote on different days. Hoaxes and misinformation have spread during elections in the past, but social media users can fuel those rumors if the companies don't act fast. 

"The team is closely monitoring the election from our war room and are in regular contact with our partners in government. So far we haven't seen anything unexpected. We will continue to monitor activity closely and act quickly against content that violates our policy," a Facebook spokesperson said in a statement.