House Jan. 6 committee seeks information from tech giants regarding attack on Capitol, attempts to overturn election - The Washington Post

… Thompson signaled that an expansive investigation is underway, touching not only on what happened Jan. 6 but also on matters such as "the former President's knowledge of the election results and what he communicated to the American people about the election."…

https://www.washingtonpost.com/politics/january-6-committee-republicans-trump/2021/08/27/d38c9dc2-0754-11ec-a266-7c7fe02fa374_story.html