https://www.reuters.com/article/us-usa-election-socialmedia/biden-campaign-asks-twitter-facebook-to-remove-trump-posts-bashing-mail-in-voting-idUSKBN23U022 >Democratic presidential candidate Joe Biden's political campaign has asked social media giants Facebook and Twitter to remove posts by Republican President Donald Trump on Monday that it said made false claims aimed at discrediting mail-in voting.