https://www.reuters.com/article/us-usa-election-twitter/twitter-unblocks-trump-campaign-account-that-shared-ny-post-story-on-biden-idUSKBN2702C4 >U.S. President Donald Trump's Twitter election campaign account was unblocked on Thursday after the social media company temporarily restricted it, saying a video from the account about Democratic presidential candidate Joe Biden's son violated its rules.