https://www.theguardian.com/us-news/2021/jan/07/donald-trump-facebook-social-media-capitol-attack

Platforms have long let his dangerous posts stand – and researchers say the Capitol attack is ‘exactly what we expected’

In the 24 hours since the US Capitol in Washington was seized by a Trump-supporting mob disputing the results of the 2020 election, American social media companies have barred the president from their platforms for spreading falsehoods and inciting the crowd.